Extra Practice 1-6 Solve Problems Involving Proportional Relationships For each problem, use any method. Assume each relationship is proportional. (Examples 1 and 2) 1. A salt-water tank needs to contain 5 gallons 2. For every 6 inches of height, Lashacha has an arm span of water for each 1-inch fish. If lan has a of about 6.17 inches. If Lashacha is 6 ft 5 in. tall, predict 30-gallon tank, predict how many inch-long fish he can the width of her arm span. (12 inches = 1 foot) have. 5 3. Emily studied people in her school and determined that 75 4. In Joel's town, about 33 out of 100 cats are black. If Joel out of 100 people in her grade could roll their tongues. If walks by 21 cats in 1 week, predict how many of those there are 1,200 people in her neighborhood, predict how cats are black. many of them can roll their tongues. 5. Erin can read 2 chapters of her book in 6. There are 3 wild cards for every 54 cards in a game. If 1.5 hours. If Erin's book has 33 chapters, predict how many Jeanette has 72 game cards, predict how many wild hours it will take her to complete her book. cards there are in the deck. 7. Kisha can play 3 games of pool in 45 minutes. If 8. A dolphin takes a breath typically 6 times in 30 Kisha plays 5 games, predict how much time Kisha minutes. Predict how many times the dolphin plays. breathes in 2 hours and 45 minutes. 9. The time it takes Sonia to mow 1 acre of land is 10. The table shows the growth rate of shown in the table. If Sonia has to mow 2 different types of spruce trees. Predict how 2.5 acres of land with a push mower, how long tall the blue spruce tree will be in does it take her to mow? 3.3 years. Push Mower 1.25 hours per acre Blue Spruce 1.75 inches per month Gas Mower 35 minutes per acre Average Spruce 11 inches per year 11. The table shows how long it takes for Building Brothers to build and renovate homes. If the company has been renovating homes for 16 years, how many homes has it renovated? Build a House 6 months Renovate a House 8 months