Real-Life Math: Writing and Solving Equations

A store sells pencils for $0.50 each. If you buy x pencils, write an equation to represent the total cost. What is the total cost if you buy 10 pencils?

• $7.50

• $10.00

• $5.00

• $2.00

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

Maria has 3 times as many marbles as John. If John has y marbles, write an equation to express the number of marbles Maria has. How many marbles does Maria have if John has 5 marbles?

• 10

• 15

• 20

• 25

Tags

CCSS.HSF.IF.A.2

A car rental company charges a flat fee of $20 plus $0.15 per mile driven. Write an equation for the total cost C of renting a car for m miles. What is the total cost if you drive 100 miles?

• $40

• $35

• $50

• $25

Tags

CCSS.HSF-BF.A.1A

A recipe requires 2 cups of flour for every 3 cups of sugar. If you want to use x cups of sugar, write an equation to find the amount of flour needed. How much flour is needed if you use 9 cups of sugar?

• 8 cups of flour

• 10 cups of flour

• 6 cups of flour

• 4 cups of flour

Tags

CCSS.6.EE.B.7

A school is planning a field trip and needs to raise $500. If each student contributes $25, write an equation to find the number of students n needed to reach the goal. How many students are needed?

• 15

• 30

• 20

• 25

Tags

CCSS.6.EE.B.7

Tom is 4 years older than his sister. If his sister is s years old, write an equation to express Tom's age. How old is Tom if his sister is 10 years old?

• 8

• 12

• 14

• 16

Tags

CCSS.6.EE.B.6

A gardener is planting flowers in rows. If each row has 8 flowers and there are r rows, write an equation for the total number of flowers F. How many flowers are there if there are 5 rows?

• 40

• 48

• 56

• 32

Tags

CCSS.HSF-BF.A.1A

A book costs $15, and there is a sale that gives a discount of d dollars. Write an equation to find the sale price S of the book. What is the sale price if the discount is $5?

• $20

• $5

• $10

• $15

Tags

CCSS.6.EE.B.7

A swimming pool is being filled with water at a rate of 10 gallons per minute. Write an equation to represent the total gallons of water W after t minutes. How many gallons are in the pool after 30 minutes?

• 500 gallons

• 300 gallons

• 200 gallons

• 150 gallons

Tags

CCSS.HSF-BF.A.1A

A concert hall has 200 seats. If x seats are sold, write an equation to find the number of seats left L. How many seats are left if 150 seats are sold?

• 75

• 25

• 100

• 50

Tags

CCSS.HSF.IF.A.2