91Ó°ÊÓ

Tell whether the ratio is in simplest form. If not, write it in simplest form. Then write the ratio in two other ways.

$\text{ â¶Ä‰}63:18$

Write the equivalent rate.

$\frac{5\text{ }cm}{1\text{ â¶Ä‰}\min }=\frac{?\text{ }cm}{1\text{ }h}$

Find the unit rate.

$\frac{\text{24muffins}}{\$15}$

Extended Problem Solving Your family used two full tanks of gasoline on a road trip. Your car drives about 25 miles per gallon, and the tank holds 12 gallons of gasoline.

a. Find the approximate number of gallons of gasoline used on the trip.

b. Find the approximate number of miles you drove on the trip.

c. Calculate Assume gasoline costs \(4.50 per gallon. How much did you spend per mile on gasoline?

d. Apply You have \)60 to spend on gasoline for another trip. The trip is 350 miles. You spend the same amount per mile on gasoline as on the first trip. Do you have enough money for gasoline? Explain.

Aquarium An aquarium has twice as many angelfish as goldfish. The aquarium contains only angelfish and goldfish. Write a ratio for the number of goldfish to the total number of fish.

Find the ratio of the area of the shaded region to the area of the unshaded region. The figures are composed of squares and triangles.

Find the ratio of the area of the shaded region to the area of the unshaded region. The figures are composed of squares and triangles.

Tell whether the ratio is in simplest form. If not, write it in simplestform. Then write the ratio in two other ways.

39:13

Three decorators purchased bouquets of roses. Decorator A paid \(120 for 5 bouquets that contained 25 roses each. Decorator B paid \)204 for 20 bouquets that contained 12 roses each. Decorator C paid $180 for 40 bouquets that contained 6 roses each. Which decorator paid the least amount per rose?

1) Find the total number of roses each decorator bought.

2) Find the price per rose for each decorator.

3) Compare the unit prices to determine which decorator paid the least per rose.