Question

What number could replace p below in the equation (30/100) = (p/10)?

A) p = 3
B) p = 30
C) p = 10
D) p = 100

Answer 1

The correct answer to the equation <30/100> =

is A) p = 3, as cross-multiplication yields 300 = 100p, and dividing both sides by 100 gives p = 3.

Step-by-step explanation:

To solve the equation (30/100) = (p/10), we can start with a direct comparison since the fractions are set equal to each other. To find what number p can be, we simply cross-multiply:

1. 30 × 10 = 100 × p
2. 300 = 100p
3. 300 / 100 = p
4. p = 3

Therefore, A) p = 3 is the correct answer, because when p is substituted back into the equation, it maintains the equality (30/100) = (3/10).