contestada

Sophia got 68 pointa correct on her math test, which earned her an 85% her friend Tami scored 71 points on the same test. How many total points were on the test?

Respuesta :

We can solve this problem by applying the rule of three:

[tex]\begin{gathered} 85\text{ \% ----- 68 points} \\ 100\text{ \% ---- x} \end{gathered}[/tex]

then, x is equal to

[tex]x=\frac{(100)(68)}{85}[/tex]

which gives

[tex]\begin{gathered} x=\frac{6800}{85} \\ x=80 \end{gathered}[/tex]

that is, the test consists in 80 points.