Question

If 5p-7q=70, what is the value of p/7-q/5? A. 1/35 B. 1 C. 2 D. 35

Answer 1

Answer:

$5p - 7q = 70 \\ \frac{1}{35} (5p - 7q) = \frac{70}{35} = 2 \\ \frac{p}{7} - \frac{q}{5} = 2$

Answer 2

Answer:

2

Explanation:

Take a common factor of 5p and 7q such that it becomes in the form p/7 and q/5 :

⇒ Here, we'll take 35 (7 × 5 = 35)

⇒ $35 ( \frac{p}{7} - \frac{q}{5} ) = 70$

⇒ $\ \frac{p}{7} - \frac{q}{5} = \frac{70}{35}$

⇒ $\ \frac{p}{7} - \frac{q}{5}$ = 2