Respuesta :

rococo908

Answer:

18 tests

Step-by-step explanation:

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

[tex]\frac{10}{5}[/tex] = [tex]\frac{x}{9}[/tex]

Cross multiply and solve for x:

5x = 90

x = 18

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

kaitlinsierras

Answer:

18

Step-by-step explanation:

18

10 tests     =   x tests

/ 5 weeks =   / 9 weeks

10* 9= x5

90/5=  18

Otras preguntas