Systems of Equations: Substitution Challenges for 8th Graders

A school is selling tickets for a play. Adult tickets cost $10 and student tickets cost $5. If they sold a total of 50 tickets for $400, how many adult tickets were sold?

• 35

• 30

• 20

• 25

Tags

CCSS.8.EE.C.8C

Maria has twice as many apples as John. Together, they have 24 apples. How many apples does John have?

• 10

• 6

• 12

• 8

Tags

CCSS.8.EE.C.7B

A car rental company charges a flat fee of $30 plus $0.20 per mile driven. If a customer paid $50, how many miles did they drive?

• 50 miles

• 75 miles

• 120 miles

• 100 miles

Tags

CCSS.7.EE.B.4A

In a fruit basket, there are oranges and bananas. The total number of fruits is 30, and there are 5 more bananas than oranges. How many oranges are in the basket?

• 10

• 15

• 20

• 12

Tags

CCSS.8.EE.C.8C

A bookstore sells novels for $15 each and magazines for $5 each. If a customer bought 10 items for a total of $100, how many novels did they buy?

• 7

• 3

• 5

• 8

Tags

CCSS.8.EE.C.7B

A gardener is planting flowers and shrubs. The total number of plants is 40, and there are 3 times as many flowers as shrubs. How many shrubs are there?

• 5

• 15

• 20

• 10

Tags

CCSS.8.EE.C.8C

Two friends are saving money for a concert. One friend saves $10 a week, while the other saves $15 a week. If they want to save a total of $200 together, how many weeks will it take?

• 12 weeks

• 10 weeks

• 8 weeks

• 5 weeks

Tags

CCSS.7.EE.B.4A

A farmer has chickens and cows. The total number of animals is 50, and there are 3 times as many chickens as cows. How many cows does the farmer have?

• 10

• 20

• 15

• 12

Tags

CCSS.8.EE.C.8C

In a class, the ratio of boys to girls is 2:3. If there are 30 students in total, how many boys are in the class?

• 12

• 18

• 15

• 10