7th Grade Milestone Review - Solving Proportions

Front

What is a proportion?

Back

When two ratios are equivalent and show the same value.

Front

Solve the proportion: 3/5 = k/15

Back

k = 9

Front

If 150 people are in line and the waiting time is 20 minutes, how long is the waiting time for 240 people?

Back

32 minutes.

Front

What is the ratio of bones to frisbees if there are 10 frisbees and 8 bones?

Back

4/5.

Front

If 13 out of 20 homes have a personal computer, how many homes would you expect to have a computer on a street with 60 homes?

Back

39 homes.

Front

What is the cross-multiplication method used for in solving proportions?

Back

To find an unknown value in a proportion by multiplying the means and extremes.

Front

If a recipe calls for 2 cups of flour for every 3 cups of sugar, what is the ratio of flour to sugar?

Back

2:3.

Front

How do you simplify the ratio 16:24?

Back

By dividing both numbers by their greatest common divisor, which is 8, resulting in 2:3.

Front

What is the first step in solving a proportion?

Back

Identify the two ratios and set them equal to each other.

Front

If a car travels 60 miles in 1 hour, how far will it travel in 3 hours at the same speed?

Back

180 miles.