what is the sum of 5 and 7 doubled?

what is the sum of 5 and 7 doubled?
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If the numerator of a fraction is increased by 25% and the denominator is doubled, the fraction thus obtained is 5/9. What is the original fraction? a) 3/4 b) 7/8 c) 8/9 d) Cannot be determined e) None of these

Description : If the numerator of a fraction is increased by 25% and the denominator is doubled, the fraction thus obtained is 5/9. What is the original fraction? a) 3/4 b) 7/8 c) 8/9 d) Cannot be determined e) None of these

Last Answer : Let the numerator & denominator of a fraction be n & d. According to questions, = n × 5 / d × 8 = 5/9 = n/d = 8 × 5 / 5 × 9 = n/d = 8/9 Answer: c)

A sewer has a diameter of 300 mm and slop of 1 in 400. While running full it has a mean velocity of 0.7 m/s. If both the diameter and slope are doubled (to respectively be 600 mm and 1 in 200), what will be the changed mean velocity when running half-full? Use Manning’s formula. (a) 1.59 m/s (b) 2.80 m/s (c) 0.90 m/s (d) 1.00 m/s

Description : A sewer has a diameter of 300 mm and slop of 1 in 400. While running full it has a mean velocity of 0.7 m/s. If both the diameter and slope are doubled (to respectively be 600 mm and 1 in 200), what will be the changed mean velocity ... 's formula. (a) 1.59 m/s (b) 2.80 m/s (c) 0.90 m/s (d) 1.00 m/s

Last Answer : (a) 1.59 m/s

An electron moving with a velocity of 5 × 10 3 m / s enters into a uniform electric field and acquires a uniform acceleration of 10 3 m / s 2 in the direction of initial velocity. i. Find out the time in which electron velocity will be doubled.? ii. How much distance electron would cover in this time.? -Science

Description : An electron moving with a velocity of 5 10 3 m / s enters into a uniform electric field and acquires a uniform acceleration of 10 3 m / s 2 in the direction of initial velocity. i. ... which electron velocity will be doubled.? ii. How much distance electron would cover in this time.? -Science

Last Answer : Given u=5×103m/su=5×103m/s , a=103m/s2a=103m/s2, v=2u=104v=2u=104 m/s i.Using v=u+atv=u+at 104=5×103+103t104=5×103+103t or t=5 sec ii. Using s=ut+12at2s=ut+12at2 s=5×103×5+12×103×52s=5×103×5+12×103×52 =37.5×103m=37.5×103m

If the head over the triangular notch is doubled, the discharge will increase by __________ times. (A) 2 (B) 2.828 (C) 5.657 (D) 4

Description : If the head over the triangular notch is doubled, the discharge will increase by __________ times. (A) 2 (B) 2.828 (C) 5.657 (D) 4

Last Answer : (C) 5.657

The rate of the chemical reaction A → B doubles as the concentration of A i.e.., CA is doubled. If rate of reaction is proportional to CA n , then what is the value of n for this reaction? (A) 0 (B) 0.5 (C) 1 (D) 2

Description : The rate of the chemical reaction A → B doubles as the concentration of A i.e.., CA is doubled. If rate of reaction is proportional to CA n , then what is the value of n for this reaction? (A) 0 (B) 0.5 (C) 1 (D) 2

Last Answer : (C) 1

How would you manage if the price of gas doubled, redoubled and then doubled again?

Description : How would you manage if the price of gas doubled, redoubled and then doubled again?

Last Answer : Walk and try to use my bike as much as possible.

How can I wire a doubled up Potentiometer to cut two different frequencies?

Description : How can I wire a doubled up Potentiometer to cut two different frequencies?

Last Answer : answer:Not quite sure I understand (and even if I do, not sure I can help, but I'll try). Are you saying that you want to re-purpose your tone knob to be a balance knob between the two ... pickups wired in parallel) that will widen on the treble side above 5 and widen on the base side below 5?

Even if they doubled or even trebled your salary, what job would you absolutely refuse to do?

Description : Even if they doubled or even trebled your salary, what job would you absolutely refuse to do?

Last Answer : I was a nurse’s aide for 4 years. My entire job revolved around feces and naked people (the ones that we really don’t want to see naked.). I don’t think there is much that I wouldn’t do for a fat salary at this point. I wouldn’t slaughter animals.

A particle is moving in Simple Harmonic Motion in a simple pendulum with some period of oscillation. Now in order to double the period of oscillation a.The length of pendulum should be quadrupled b.The length of pendulum should be doubled c.The mass of the bob should be halved d.The length of pendulum should be reduced to one fourth e.The mass of the bob should be doubled

Description : A particle is moving in Simple Harmonic Motion in a simple pendulum with some period of oscillation. Now in order to double the period of oscillation a.The length of pendulum should be quadrupled b.The ... length of pendulum should be reduced to one fourth e.The mass of the bob should be doubled

Last Answer : a. The length of pendulum should be quadrupled

The price of everything just doubled. What do you do?

Description : The price of everything just doubled. What do you do?

Last Answer : Certainly not pay my employees more, I need all the profits I can get to afford a living! /s

The distance from the Earth to the Sun is about 100 million miles. The speed of light is 186,000 miles per second, and light takes eight minutes to reach the Earth from the Sun. Let's say the Sun rose at 6am this morning, and that by some freak of physics the speed of light is suddenly doubled to 372,000 miles a second.What time will the Sun rise tomorrow? -Riddles

Description : The distance from the Earth to the Sun is about 100 million miles. The speed of light is 186,000 miles per second, and light takes eight minutes to reach the Earth from the Sun. Let's say the ... of light is suddenly doubled to 372,000 miles a second.What time will the Sun rise tomorrow? -Riddles

Last Answer : 6am again. After all, what diffrence does the speed of light make to the answer? It's irrelevant- only the speed of the roation of the Earth matters here.

A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height? -Riddles

Description : A tree doubled in height each year until it reached its maximum height over the course of ten years. How many years did it take for the tree to reach half its maximum height? -Riddles

Last Answer : Nine Years.

If in a cylinder, radius is doubled and height is halved, then find its curved surface area. -Maths 9th

Description : If in a cylinder, radius is doubled and height is halved, then find its curved surface area. -Maths 9th

Last Answer : Let r and h be radius and height of the cyclinder, then C.S.A. = 2πrh Now, radius is doubled and height is halved. ∴ New radius = 2r and new height = h / 2 New C.S.A. = 2π × 2r × h / 2 = 2πrh .

A spherical ball is divided into two equal halves. If the curved surface area of each half is 56.57 cm?, find the volume of the spherical ball.11531/cylinder-radius-halved-and-height-doubled-then-find-volume-with-respect-original-volume -Maths 9th

Description : A spherical ball is divided into two equal halves. If the curved surface area of each half is 56.57 cm?, find the volume of the spherical ball.11531/cylinder-radius-halved-and-height-doubled-then-find-volume-with-respect-original-volume -Maths 9th

Last Answer : since curved surface of half of the spherical ball = 56.57 cm2 ∴ 2πr2 = 56.57 ⇒ r2 = 56.57 / 2 × 3.14 = 9 ⇒ r = 3 cm Now, volume of spherical ball = 4 / 3 πr3 = 4 / 3 × 3.14 × 3 × 3 × 3 = 113.04 cm3

If in a cylinder, radius is doubled and height is halved, then find its curved surface area. -Maths 9th

Description : If in a cylinder, radius is doubled and height is halved, then find its curved surface area. -Maths 9th

Last Answer : Let r and h be radius and height of the cyclinder, then C.S.A. = 2πrh Now, radius is doubled and height is halved. ∴ New radius = 2r and new height = h / 2 New C.S.A. = 2π × 2r × h / 2 = 2πrh .

A spherical ball is divided into two equal halves. If the curved surface area of each half is 56.57 cm?, find the volume of the spherical ball.11531/cylinder-radius-halved-and-height-doubled-then-find-volume-with-respect-original-volume -Maths 9th

Description : A spherical ball is divided into two equal halves. If the curved surface area of each half is 56.57 cm?, find the volume of the spherical ball.11531/cylinder-radius-halved-and-height-doubled-then-find-volume-with-respect-original-volume -Maths 9th

Last Answer : since curved surface of half of the spherical ball = 56.57 cm2 ∴ 2πr2 = 56.57 ⇒ r2 = 56.57 / 2 × 3.14 = 9 ⇒ r = 3 cm Now, volume of spherical ball = 4 / 3 πr3 = 4 / 3 × 3.14 × 3 × 3 × 3 = 113.04 cm3

In a cylinder, radius is doubled and height is halved, then curved surface area will be -Maths 9th

Description : In a cylinder, radius is doubled and height is halved, then curved surface area will be -Maths 9th

Last Answer : The curved surface area will remain same. So, there is no change in the curved surface area of cylinder . Hence the curved surface area will remain same.

In a cylinder, radius is doubled and height is halved, then curved surface area will be -Maths 9th

Description : In a cylinder, radius is doubled and height is halved, then curved surface area will be -Maths 9th

Last Answer : The curved surface area will remain same. So, there is no change in the curved surface area of cylinder . Hence the curved surface area will remain same.

How many times area is changed, when sides of a triangle are doubled. -Maths 9th

Description : How many times area is changed, when sides of a triangle are doubled. -Maths 9th

Last Answer : Four times area is changed, when sides of a triangle are doubled.

If each side of a triangle is doubled,... -Maths 9th

Description : If each side of a triangle is doubled,... -Maths 9th

Last Answer : Let a, b, c be the sides of the given triangle and s be its semi-perimeter. Then, s = (a + b + c)/2 ...(i) ∴ Area of the given triangle = root under ( √s(s - a)(s - b)(s - c)) = △, say According to ... - c)) = 4 root under ( √ s(s - a)(s - b)(s - c)) = 4 △ Therefore, the required ratio is 4:1

If the radius of a sphere is doubled... -Maths 9th

Description : If the radius of a sphere is doubled... -Maths 9th

Last Answer : Surface area of sphere = 4πr2 When radius is doubled then new surface area = 4π(2r)2 = 4π x 4r2 = 4(4πr2 ) = 4 x original surface area. ∴​ Surface area becomes 4 tim es.

If the radius of a cylinder is doubled -Maths 9th

Description : If the radius of a cylinder is doubled -Maths 9th

Last Answer : Volume of cylinder = πr2h New volume = πR2H = π.(2r)2.(h/2) = 2( πr2h) ∴ New volume = 2 x original volume.

The percentage increase in the area of a triangle if each of its side is doubled is -Maths 9th

Description : The percentage increase in the area of a triangle if each of its side is doubled is -Maths 9th

Last Answer : (c) 300%.Let a, b, c be the sides of the original triangle and s be its semi-perimeter.Then, s = \(rac{1}{2}\)(a+b+c)Let s1 be the semi-perimeter of the new triangle. Then,s1 = \(rac{1}{2}\) (2a + 2b ... increase in area = \(\bigg(rac{A_1-A}{A} imes100\bigg)\)%= \(rac{(4A-A)}{A} imes100\)% = 300%.

The base of a right triangular prism is an equilateral triangle. If the height is halved and each side of the base is doubled, find the ratio of the -Maths 9th

Description : The base of a right triangular prism is an equilateral triangle. If the height is halved and each side of the base is doubled, find the ratio of the -Maths 9th

Last Answer : 1 : 2 Let each side of the base of the original prism be a units and the height of the prism be h units. Then Required ratio = Vol. of original prismVol. of new prismVol. of original ... )2×h3√4×(2a)2×h234×(a)2×h34×(2a)2×h2 = 2a2h4a2h2a2h4a2h = 1 : 2.

If the mass of the body is doubled and velocity is made halved, the kinetic energy will become? -Physics 9th

Description : If the mass of the body is doubled and velocity is made halved, the kinetic energy will become? -Physics 9th

Last Answer : New kinetic energy becomes, So, the new kinetic energy of the object gets doubled.

When in the cell cycle is dna doubled?

Description : When in the cell cycle is dna doubled?

Last Answer : S Phase

If the mass of an object is doubled and the mass of object B is halved, what will be the difference in the weight of the two objects on earth ?

Description : If the mass of an object is doubled and the mass of object B is halved, what will be the difference in the weight of the two objects on earth ?

Last Answer : Weight depends a lot on mass. The mass of the two objects does not hold 2 . The previous weight of A is w = 2 * 9.8 = 19.6 N. If I double, mass = ( 2 * 2) = 4 . Therefore w '= 4 * 9.8 = 39.2 N. . Again b's w "= 2 * 9.8 = 19.6 N .. And halving the mass = 1 .

Assertion (A) : The concentration of methane in the atmosphere has more than doubled in the last 250 years. Reason (R): Wetlands and rice fields are t

Description : Assertion (A) : The concentration of methane in the atmosphere has more than doubled in the last 250 years. Reason (R): Wetlands and rice fields are t

Last Answer : Assertion (A) : The concentration of methane in the atmosphere has more than doubled in the last 250 ... true but reason is wrong D. Both are wrong

Assertion :- In anaphase number of chromosomes get doubled. Durring anaphase each chromosome split simultaneously and two daughter chromatids now refe

Description : Assertion :- In anaphase number of chromosomes get doubled. Durring anaphase each chromosome split simultaneously and two daughter chromatids now refe

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In which stage the DNA is doubled :-

Description : In which stage the DNA is doubled :-

Last Answer : In which stage the DNA is doubled :- A. Metaphase B. Anaphase C. Interphase D. Prophase

The resistance of a silver wire at `0^(@)C " is " 1.25 Omega`. Upto what temperature it must be heated so that its resistance is doubled ? The tempera

Description : The resistance of a silver wire at `0^(@)C " is " 1.25 Omega`. Upto what temperature it must be heated so that its resistance is doubled ? The tempera

Last Answer : The resistance of a silver wire at `0^(@)C " is " 1.25 Omega`. Upto what temperature ... temperature be same for all silver conductors of all shapes ?

A circular flexible loop of wire of radius r carrying a current I is placed in a uniform magnetic field B . If B is doubled, then tension in the loop

Description : A circular flexible loop of wire of radius r carrying a current I is placed in a uniform magnetic field B . If B is doubled, then tension in the loop

Last Answer : A circular flexible loop of wire of radius r carrying a current I is placed in a uniform magnetic field ... is doubled C. is halved D. becomes 4 times

The drift speed of electrons in copper wire of diameter and length `l` is `v` . If the potential difference across the wire is doubled, then the new d

Description : The drift speed of electrons in copper wire of diameter and length `l` is `v` . If the potential difference across the wire is doubled, then the new d

Last Answer : The drift speed of electrons in copper wire of diameter and length `l` is `v` . If the potential ... `2upsilon` C. `3upsilon` D. `upsilon//2`

A metal wire of circular cross-section has a resistance `R_(1)`. The wire is now stretched without breaking, so that its length is doubled and the den

Description : A metal wire of circular cross-section has a resistance `R_(1)`. The wire is now stretched without breaking, so that its length is doubled and the den

Last Answer : A metal wire of circular cross-section has a resistance `R_(1)`. The wire is now stretched without breaking, so that its ... 2` C. `4 : 1` D. `1 : 4`

What is 29 doubled?

Description : What is 29 doubled?

Last Answer : Need answer

What is 65 doubled 4 times?

Description : What is 65 doubled 4 times?

Last Answer : It is: (65+65)*4 = 520

What would be the momentum of the passenger bus its velocity were doubled?

Description : What would be the momentum of the passenger bus its velocity were doubled?

Last Answer : a) doubledb) tripledc) doubled (assuming the engine is used to bring it back to thesame speed)d) quadruplede) halved

In a direct variation if the x value is doubled is the y value doubled?

Description : In a direct variation if the x value is doubled is the y value doubled?

Last Answer : it is doubled

What is the change in Pressure if Volume is doubled?

Description : What is the change in Pressure if Volume is doubled?

Last Answer : Feel Free to Answer

In a direct variation if the x value is doubled is the y value doubled?

Description : In a direct variation if the x value is doubled is the y value doubled?

Last Answer : it is doubled

Are two fourteens doubled one seventh?

Description : Are two fourteens doubled one seventh?

Last Answer : no

What does it mean if the length and width of a rectangle is doubled?

Description : What does it mean if the length and width of a rectangle is doubled?

Last Answer : here could be many solutions for this equation..all you have to do is pick a number for the width and do what it says..like so.. L = 2(w) + 7 lets say the width is 5 so…

Can Friskies coupons be doubled?

Description : Can Friskies coupons be doubled?

Last Answer : Yes Friskies coupons can be doubled. You will of course have to go to a store that in fact practices the doubling of coupons.

What would happen if the Earth's gravity doubled?

Description : What would happen if the Earth's gravity doubled?

Last Answer : A lot of plants and animal could possibly die because of the added weight, building may collapse and people may live through it and eventually adapt to the change as would any other surviving plants and animals.

Rate of reaction can be expressed as –dc/dt where dc is small decreasing concentration in time dt seconds, (-) sign indicates that the concentration decreases with time. For every 10 degrees rise of temperature, the rate of reaction is generally. Doubled

Description : Rate of reaction can be expressed as –dc/dt where dc is small decreasing concentration in time dt seconds, (-) sign indicates that the concentration decreases with time. For every 10 degrees rise of temperature, the rate of reaction is generally. Doubled

Last Answer : Which equation gives the relation between specific rate (k) and Temperature ?

When the speed of a body is doubled, its kinetic energy becomes (a) double (b) half (c) quadruple (d) one-fourth

Description : When the speed of a body is doubled, its kinetic energy becomes (a) double (b) half (c) quadruple (d) one-fourth

Last Answer : Ans:(c)

When the velocity of a body is doubled, its 1. acceleration is doubled 2. momentum is doubled 3. kinetic energy becomes four times 4. potential energy is doubled Which of the above is/are correct? (a) 2 only (b) 2 and 3 (c) 3 only (d) 2 and 4

Description : When the velocity of a body is doubled, its 1. acceleration is doubled 2. momentum is doubled 3. kinetic energy becomes four times 4. potential energy is doubled Which of the above is/are correct? (a) 2 only (b) 2 and 3 (c) 3 only (d) 2 and 4

Last Answer : Ans:(b)

If the length of a pendulum is doubled, its frequency of oscillation is changed by a factor of (a) 2 (b) √2 (c) 1/2 (d) 1/4

Description : If the length of a pendulum is doubled, its frequency of oscillation is changed by a factor of (a) 2 (b) √2 (c) 1/2 (d) 1/4

Last Answer : Ans:(c)

Mitosis is a type of cell division in which - (1) The chromosomes maintain their original number (2) The chromosome number is reduced to half (3) The Chromosome number is doubled (4) The chromosome number is reduced to one fourth

Description : Mitosis is a type of cell division in which - (1) The chromosomes maintain their original number (2) The chromosome number is reduced to half (3) The Chromosome number is doubled (4) The chromosome number is reduced to one fourth

Last Answer : (3) The Chromosome number is doubled