Real-Life Equations: Interpret and Check Solutions

Maria has 3 times as many apples as John. If John has x apples, write an equation to represent the number of apples Maria has. How many apples does Maria have if John has 4 apples?

• 10

• 12

• 8

• 15

A book costs $15. If you buy x books, write an equation to find the total cost. How much will it cost to buy 5 books?

• $100

• $75

• $50

• $30

Tom is 5 years older than his sister. If his sister is y years old, write an equation to express Tom's age. How old is Tom if his sister is 10 years old?

• 12

• 10

• 20

• 15

A car travels at a speed of 60 miles per hour. If it travels for t hours, write an equation for the distance traveled. How far does the car travel in 3 hours?

• 240 miles

• 120 miles

• 150 miles

• 180 miles

A rectangle has a length that is 4 meters longer than its width. If the width is w meters, write an equation for the length. What is the length if the width is 6 meters?

• 14 meters

• 10 meters

• 8 meters

• 12 meters

Samantha has $50. She spends x dollars on a toy. Write an equation to find out how much money she has left. How much does she have left if she spends $20?

• $40

• $10

• $20

• $30

A pizza is cut into 8 equal slices. If you eat y slices, write an equation to find out how many slices are left. How many slices are left if you eat 3 slices?

• 4

• 2

• 5

• 6

A school has 120 students. If x students are in the 6th grade, write an equation to find out how many students are not in the 6th grade. How many students are not in the 6th grade if there are 30 students in that grade?

• 100

• 60

• 90

• 80

A farmer has 50 chickens and buys x more. Write an equation to represent the total number of chickens. How many chickens does the farmer have if he buys 10 more?

• 45

• 70

• 55

• 60

A train leaves the station at 2 PM and travels at a speed of 80 miles per hour. If it travels for h hours, write an equation for the distance traveled. How far does the train travel if it goes for 2.5 hours?

• 200 miles

• 160 miles

• 100 miles

• 240 miles