Ratios, Rates & Proportions - ACT Math

What is a proportion?

Convert $5$ yards to feet.

If $y$ varies inversely with $x$, and $y = 6$ when $x = 4$, write the equation.

A class has $12$ boys and $18$ girls. What is the ratio of boys to girls?

What is the difference between part-to-part and part-to-whole ratios?

A $\$80$ item is on sale for $25%$ off. What is the sale price?

How long does it take to travel $300$ miles at $60$ mph?

What is a unit rate?

Two numbers are in the ratio $5:3$. If their sum is $64$, find the larger number.

What is inverse variation and how do you identify the constant?

A printer prints $240$ pages in $8$ minutes. How many pages per minute?

Solve for $x$: $\dfrac{3}{5} = \dfrac{x}{20}$

A recipe calls for $2$ cups of flour and $3$ cups of sugar. What is the ratio of flour to sugar?

What is $30%$ of $80$?

$15$ is what percent of $60$?

What is the distance formula using rate and time?

Convert $3.5$ hours to minutes.

A store marks up items by $50%$. If the original price is $\$40$, what is the selling price?

What is a ratio?