Question

Vera took 10 tests over a time of 5 weeks. After 9 weeks this quarter, how many tests will Vera have taken?

Answer 1

18 tests

Explanation:

Create a proportion where x is the number of tests after 9 weeks:

`(10)/(5)` =
`(x)/(9)`

Cross multiply and solve for x:

5x = 90

x = 18

So, after 9 weeks, Vera will have taken 18 tests

Answer 2

18

Explanation:

18

10 tests = x tests

/ 5 weeks = / 9 weeks

10* 9= x5

90/5= 18