TEKS 8.4B Worksheets — Grade 8 Graph proportional relationships, interpreting the unit rate

Noah is planning a field trip for his class to visit the Texas State Capitol in Austin. The cost is $15 per student. If there are 24 students in the class, how much will it cost in total for all the students to go on the field trip?

1. 360 ✓
2. 375
3. 300
4. 240

Why: To find the total cost for all students, multiply the cost per student by the number of students. So, 15 × 24 = 360. Therefore, the total cost for all students to go on the field trip is 360.

Imani is organizing a fundraiser car wash at her school. If each car wash costs $15 and they expect to wash 60 cars, how much money will they raise in total?

1. 900 ✓
2. 750
3. 1,200
4. 1,050

Why: To find the total amount raised, multiply the cost of each car wash by the number of cars washed. So, $15 × 60 = $900. Therefore, the total amount raised will be $900.

Mateo is planning a school fundraiser by selling handmade bracelets. He sells each bracelet for $5. If he sells 12 bracelets, how much money will Mateo make in total from the sales?

1. $60 ✓
2. $50
3. $40
4. $70

Why: To find out how much money Mateo will make, multiply the number of bracelets sold by the price of each bracelet. Mateo sells 12 bracelets, and each bracelet costs $5. Therefore, the total amount made is 12 * 5 = 60. So, the correct answer is $60.

Sofia is planning a party for her friends and wants to buy pizzas. Each pizza costs $12. If Sofia decides to order 5 pizzas, how much will she spend in total on pizzas?

1. $60 ✓
2. $55
3. $50
4. $65

Why: To find the total cost of the pizzas, multiply the number of pizzas by the cost per pizza. Sofia orders 5 pizzas at $12 each, so you calculate 5 * 12 = 60. Therefore, she will spend a total of $60.

Noah is organizing a community event and needs to buy supplies for gift bags. Each gift bag requires 3 pencils, 2 notebooks, and 4 erasers. If Noah wants to prepare 15 gift bags, how many total pencils does he need to buy?

1. 45 ✓
2. 30
3. 60
4. 15

Why: To find the total number of pencils Noah needs, multiply the number of pencils needed for each gift bag (3) by the number of gift bags (15). Therefore, 3 * 15 = 45. Noah needs to buy 45 pencils in total.

Carlos is planting flowers in his garden. He wants to plant them in a ratio of 3 red flowers to 2 blue flowers to 1 yellow flower. If he plans to plant a total of 60 flowers, how many red flowers will he plant?

1. 30 ✓
2. 36
3. 18
4. 12

Why: To find the number of red flowers, first determine the total parts of the ratio: 3 (red) + 2 (blue) + 1 (yellow) = 6 parts. Since Carlos is planting 60 flowers in total, each part represents 60 / 6 = 10 flowers. Therefore, the number of red flowers will be 3 * 10 = 30.

Diego is planning a road trip across Texas and wants to calculate how many miles he can travel in a day. If he drives at an average speed of 60 miles per hour for 8 hours, which of the following best represents the total distance he can travel in one day?

1. 480 miles ✓
2. 420 miles
3. 500 miles
4. 360 miles

Why: To find the total distance, multiply the average speed by the time traveled. Diego drives at 60 miles per hour for 8 hours, so the calculation is 60 * 8 = 480 miles. Therefore, the correct answer is 480 miles.

Zara is organizing a charity bake sale at her school to raise money for local families in need. If she bakes 3 dozen cupcakes and sells each cupcake for $2, what will be the total amount of money she makes if all the cupcakes are sold?

1. $72 ✓
2. $60
3. $48
4. $36

Why: To find the total money Zara makes, first calculate how many cupcakes she has by converting dozens to individual cupcakes. There are 12 cupcakes in a dozen, so 3 dozen means 3 * 12 = 36 cupcakes. Then, multiply the number of cupcakes by the price per cupcake: 36 * 2 = $72. Therefore, the correct answer is $72.