Question

Identify the value of x that makes each pair of ratios equivalent.

4. 21 to x and 7 to 10
a.24
b.30
c.40

Answer 1

B

Explanation:

Start by writing the ratios equal to each other since they are equivalent.

`(21)/(x)=(7)/(10)`

Notice if you divide 21/3 = 7. Since they are equa then x/3=10. What number divided by 3 equals 10? x=30