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Alexus [3.1K]
3 years ago
6

The value of y is directly proportional to the value of x. If y =35 when x = 140, what is the value of y when x =70?

Mathematics
1 answer:
torisob [31]3 years ago
3 0
17.5 because 140 divided by 35 is 17.5 and so is 70 divided by 35.
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The position of an object at time t is given by s(t) = 1 - 12t. Find the instantaneous velocity at t = 2 by finding the derivati
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The change of displacement with respect to time is defined as speed. Velocity is a vector quantity. The instantaneous velocity at t = 2 is -12.

<h3>What is velocity?</h3>

The change of displacement with respect to time is defined as Velocity. velocity is a vector quantity. It is a time-based component. Its standard unit is m/sec.

Given that the position of an object at time t is given by s(t) = 1 - 12t. Therefore, the velocity of the object can be written as,

V = ds/dt

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s'(t) = -12

Now, the instantaneous velocity at t=2 is,

s'(2) = -12

Hence, the instantaneous velocity at t = 2 is -12.

To learn more about Velocity:

brainly.com/question/862972

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2 years ago
When Judy worked 4 hours and Ben worked 1 hour, their combined pay was $75. When Judy worked 2 hours and Ben worked 6 hours, the
arsen [322]

Answer:

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Step-by-step explanation:

let the hourly rate of pay for Ben  = B

let the hourly rate of pay for Judy  = J

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Judy worked 2 hours and Ben worked 6 hours, their combined pay was $120

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Now, we should solve the expression;

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            4J + B = 75 ----- i    x 1  ;    4J + B  = 75          -- iii

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Now,

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So, solving for J;

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         4J + 15  = 75

          4J  = 75 - 15  = 60

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3 years ago
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<span>g(f(x)) = g(-5x+4) = 4(-5x+4) + 5 = 21-20x</span>
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Answer:

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