Solving Word Problem Equations

Jessica bought a soft drink for 3 dollars and 7 candy bars. She spent a total of 17 dollars. How much did each candy bar cost ?

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CCSS.7.EE.B.4A

The sum of three consecutive even numbers is 132. What is the smallest of the three numbers ?

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CCSS.8.EE.C.7B

The sum of three consecutive numbers is 81. What is the smallest of the three numbers ?

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CCSS.8.EE.C.7B

The sum of three consecutive odd numbers is 147. What is the smallest of the three numbers ?

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CCSS.8.EE.C.7B

Melanie had 228 dollars to spend on 9 books. After buying them she had 12 dollars. How much did each book cost ?

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CCSS.3.OA.D.8

Sam bought 7 new baseball trading cards to add to his collection. The next day his dog ate half of his collection. There are now only 27 cards left. How many cards did Sam start with ?

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CCSS.7.EE.B.4A

The sum of two numbers is 49. The second of the two is 8 more than the first. Write an equations & solve for the second number?

• Second # = 20.5

• Second # = 28. 5

• Second # = 8

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CCSS.8.EE.C.8C

The length of a rectangle is 6 less than three times the width. If the perimeter is 28 feet, what is the length and width of the rectangle?

• length = 18 ft. and width = 10 ft.

• length = 19.5 ft. and width = 8.5 ft.

• length = 9 ft. and width = 5 ft.

• length = 9.5 ft. and width = 4.5 ft.

The Ocean County Fair costs $15.00 to get in and $2.50 per ride, while the Monmouth County Fair costs $10.00 to get in and $3.00 per ride. Which equations could be used to determine how many rides you would need to go on for both fairs to be of equal value?

• 15x + 2.5 = 10x + 3

• 15 - 2.5x = 10 - 3x

• 15 + 2.5x = 10 + 3x

• 15 - 10 = 2.5x + 3x

Solve the formula for r.   What is the 1st step?

• Divide each side by t. 

• Subtract t from each side. 

• Add t to each side. 

• Multiply each side by t. 

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CCSS.HSA.CED.A.4