Matías solved 28 math problems in 20 minutes yesterday.Using the same rate,how many math problems cans Matías solve in 90 minutes

Question

asked Aug 5, 2023 169k views

1 Answer

Piotr Tobolski · Answer 1 · 2023-08-11T10:06:19+0000

To find the rate we divide the amount of problems he solved by the time it took him

$(28)/(20)=1.4\frac{\text{problems}}{\text{minute}}$

then to find the amount of problems he will solve in 90 minutes we multiply the rate by the time

$1.4\frac{problems}{\text{minute}}\cdot90\text{minutes}=126\text{problems}$

He will solve 126 problems in 90 minutes.