PROPORTION TRASHKETBALL 7th Grade Math Team

TRAPEZOID ABCD IS SIMILAR TO TRAPEZOID RSTU.

What equation can be used to find the length of side ST?

Nathan paid $198.57 for a suit. He knew that the total included $18,67 in tax. Which is the best estimate for the percentage of the total that was tax?

A. 25% B. 15% C. 10% D. 5%

Cherie works in a movie theater. She worked 24 hours this week and earned a total $198. What is her hourly rate?

$17.40 per hour $12.12 per hour $15.67 per hour $19.80 per hour

• Barbara and Eva are toddlers. Barbara ran 880 yards in 44 minutes and Eva ran 220 yards in 10 minutes. Which statement is correct?

• Eva ran at a slower rate than Barbara.• Barbara ran a faster rate than Eva.• Barbara and Eva ran at the same rate.• Eva ran a faster rate than Barbara.• There is not enough information to determine who

was faster because they ran different distance and it took different amounts of time.

Mrs. Jenkins told Edmund that he could raise his science grade by 5% if he answered 10 extra credit questions. Edmund’s original grade was 80. If he does the extra credit questions, his new grade will be-

A. 82 B. 84 C. 85 D. 88

You volunteer to go to the store to buy breakfast for the family reunion. A dozen eggs cost $2.40. How much is the unit price (the price per egg)?

$0.12 $0.20 $2.00 $0.02 $0.40

Stefano holds up an 8-inch pencil 32 inches from his eye. The pencil fills the image of a sculpture that is 40 feet away. How tall is the sculpture?

10 feet 14 feet 8 feet 16 feet 22 feet

• You also need to buy soda for the picnic. You select a case of 24 cans of soda that costs a total of $8.00. What are the units of measurement used in the rate of the cost of one can?

• price per case• can per case• can per price• price per can• case per price

• Your grandmother is worried about the heat during the family reunion picnic. Yesterday, between 10 a.m. and noon, the temperature rose 6 degrees. Then, between noon and 3 p.m., it rose 4 more degrees. What was the average rate of increase in temperature between 10 a.m. and 3 p.m.?

• 5 degrees per hour• 4 degrees per hour• 6 degrees per hour• 2 degrees per hour• 10 degrees per hour

• Two runners ran in opposite directions. One runner ran at a constant rate of 8 miles per hour for 2 hours. The other runner ran in the opposite direction at a constant rate of 7 miles per hour for 3 hours. What is the distance between the two after they both stopped?

• 16 miles• 21 miles• 37 miles• 15 miles

Bobby wanted to lose 75 pounds. He worked out everyday for 3 months and lost 30 pounds. What percent of his goal did Bobby need to meet?

25% 50% 60% 40% 75%

• You are standing 21 feet from a tree. You have a 25-inch stick you are holding 35 inches from your eye. You see that the top of the tree exactly matches the top of the stick you are holding. The bottom of the stick exactly matches the bottom of the tree. How tall is the tree?

• 14 feet• 46 feet• 15 feet• 17 feet• 7 feet

For dessert for the picnic, you decide to buy cupcakes. Cupcakes are sold in a 4-pack for $2.40 or a 6-pack for $3.48. What do you save per cupcake by buying the 6-pack?

$1.08 about $0.11 $0.60 $0.02 $0.58

ENRIQUE LOOKED AT STORE ADS TO COMPARE THE PRICE OF POWDERED LAUNDRY DETERGENT. THE PRICES ARE SHOWN ON THE TABLE BELOW.

Prices of Powdered Laundry Detergent

Name Amount Price

Klenso 112 oz $14.19 Bright Wave 17.5 lb $16.99 Fresh Touch 3 lb $8.49 Green Clean 26 oz $7.19

Which detergent costs the least per ounce?

Klenso Bright Wave Fresh Touch Green Clean

• Your family is trying to decide which car to use to go on the family reunion trip. Your dad drives a sports car that gets 36 miles per gallon. Your mom drives a minivan that gets 24 miles per gallon. The gas tank on your dad's car holds 15 gallons, while the gas tank on your mom's car holds 20 gallons. Which statements are true? Select all that apply.

• Dad's car can travel farther on one tank of gas.• Mom's car can travel farther on one tank of gas.• Mom's car can travel 480 miles on one tank of

gas.• Dad's car can travel 405 miles on one tank of gas.• Mom's car can travel 300 miles on one tank of gas

THE HUTTO MIDDLE SCHOOL CAFETERIA SURVEYED STUDENTS TO FIND THE MOST POPULAR LUNCH CHOICES. THE RESULTS OF THE STUDENT POLL ARE DISPLAYED IN THE TABLE BELOW.

Favorite Lunch Foods

Food Pizza Burger ChickenStrips Wraps Nachos

Votes 88 117 164 77 142

Approximately what percent of students selected nachos as their favorite lunch food?

24% 20% 28% 15%

Which of the following measurements are rates? Select all that apply.

54 miles per gallon 27 feet per second 64 square feet 14 quarts in a barrel 800 minutes