Equations Given a Word Problem

Which of the following is the correct equation to solve the problem below? Four consecutive integers add up to 370, what are the four integers?

•Ricky was shopping at a used book sale where all books were selling at the same price. He bought six science fiction books and eight mysteries. He also decided to buy a poster for $2.40. In total, Ricky spent $8.70. What was the price of a single book?

Write an equation to represent the problem given: After paying $5.12 for a salad, Nora has $27.10. How much money did she have before buying the salad?

• n + $5.12 = $27.10

• n - $5.12 = $27.10

• n - $5.12 = -$27.10

• $5.12 - n = $27.10

Solve the word problem.
After paying $5.12 for a salad, Nora has $27.10. How much money did she have before buying the salad?
Use the equation:
n−5.12=27.10

• $32.22

• $22.02

• $21.98

Write an equation to represent the problem: Todd caught three times as many fish this year than last year. He caught 63 fish by the end of the year. Which algebraic equation represents how many fish he caught last year?

• 3f = 63

• 63 - 3 = f

• 63/3 = f

• 3 + f = 63

Solve the word problem.
Todd caught three times as many fish this year than last year. He caught 63 fish by the end of the year. Which algebraic equation represents how many fish he caught last year? Use the equation:
3f=63

• 189 fish

• 60 fish

• 21 fish

Last week Julia ran 30 miles more than Larry. Julia ran 47 miles in total. How many miles did Larry run?

• n + 47 = 30

• n + 30 = 47

• n - 30 = 47

• 30n =47

Solve the word problem.
Last week Julia ran 30 miles more than Larry. Julia ran 47 miles in total. How many miles did Larry run? Use the equation:
n+30=47

• 77 miles

• 17 miles

Write an equation to represent the problem given: Mary earns $14 per hour. Which equation represents how many hours she worked to earn $112?

• 14h = 112

• 14 / h = 112

• h + 14 = 112

• h - 14 = 112

Solve the word problem:
Mary earns $14 per hour. Which equation represents how many hours she worked to earn $112? Use the equation:
14h=112

• 1568 hours

• 126 hours

• 98 hours

• 8 hours