Question

work out q when r is 45

Answer 1

Answer:

q=r

Step-by-step explanation:

76=20

38/10

3.8

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Answer 2

Answer:

Your answer is....

The value of q is 171.

Given : q is directly proportional to r , q is 76 when r = 20.

To find : Calculate q when r is 45 ?

Solution :

q is directly proportional to r,

i.e. q ∝ r

So, q = kr

Where, k is constant of proportional.

Substitute q=76 and r=20,

76 = k (20)

k = 76 / 20

k = 3.8

The equation became, q = 3.8r

Now, substitute r = 45 and get value of q

q = 3.8 × 45

q = 171

Therefore, the value of q is 171....

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