Chapter 6, Problem 8MCQ

To determine

To solve: the proportion $\frac{8}{b}=\frac{60}{75}$ and find the value of $b$ .

Answer to Problem 8MCQ

The value of $b$ in proportion $\frac{8}{b}=\frac{60}{75}$ is $10$ .

Explanation of Solution

Given information : consider, the proportionprovided in the question,

  $\frac{8}{b}=\frac{60}{75}$ .

Calculation : to solve the proportion use cross products propertythen multiply by $b$ at both side then multiply by 75, then divide the result by 60.

  $\begin{array}{l}\frac{8}{b}=\frac{60}{75}\\ 8=\frac{60}{75}b\\ 8·75=60·b\\ 60·b=600\\ b=10\end{array}$

Hence,

Thus,The value of $b$ in proportion $\frac{8}{b}=\frac{60}{75}$ is $10$ .