Solving Real-Life Linear Equations: Isolate Variables

A store sells pencils for $2 each and erasers for $3 each. If you buy a total of 10 items and spend $24, how many pencils and erasers did you buy?

• 5 pencils and 5 erasers

• 4 pencils and 6 erasers

• 7 pencils and 3 erasers

• 6 pencils and 4 erasers

Tags

CCSS.8.EE.C.8C

Maria has twice as many marbles as John. If the total number of marbles they have is 36, how many marbles does each person have?

• John has 10 marbles and Maria has 26 marbles.

• John has 18 marbles and Maria has 18 marbles.

• John has 15 marbles and Maria has 21 marbles.

• John has 12 marbles and Maria has 24 marbles.

Tags

CCSS.8.EE.C.8C

In a school, the number of boys is 5 more than twice the number of girls. If there are 35 students in total, how many boys and girls are there?

• 20 boys and 15 girls

• 30 boys and 5 girls

• 25 boys and 10 girls

• 15 boys and 20 girls

Tags

CCSS.8.EE.C.8C

A gardener has a rectangular garden that is 3 feet longer than it is wide. If the perimeter of the garden is 54 feet, what are the dimensions of the garden?

• Width: 10 feet, Length: 13 feet

• Width: 8 feet, Length: 11 feet

• Width: 14 feet, Length: 17 feet

• Width: 12 feet, Length: 15 feet

Two friends, Alex and Jamie, have a total of $50. If Alex has $10 more than Jamie, how much money does each friend have?

• Alex has $40 and Jamie has $10.

• Alex has $20 and Jamie has $30.

• Alex has $30 and Jamie has $20.

• Alex has $25 and Jamie has $25.

Tags

CCSS.8.EE.C.8C

A recipe requires 3 cups of flour and 2 cups of sugar. If you want to make a batch that uses 5 cups of flour, how much sugar will you need?

• 3.33 cups of sugar

• 1.5 cups of sugar

• 4 cups of sugar

• 2 cups of sugar

Tags

CCSS.6.RP.A.3B

A theater has 200 seats. If 30% of the seats are empty, how many seats are filled?

• 100

• 180

• 160

• 140

Tags

CCSS.6.EE.B.6

A book costs $15, and a magazine costs $5. If you buy a total of 10 items and spend $100, how many books and magazines did you buy?

• 3 books and 7 magazines

• 5 books and 5 magazines

• 4 books and 6 magazines

• 6 books and 4 magazines

Tags

CCSS.8.EE.C.8C