Creating Equations A-CED.1

WRITE AN EQUATION

Aliyah had $24 to spend on seven pencils. After buying them she had $10. How much did each pencil cost?

• 24-10=7x

• 24+7x=10

• 10+7x=24

• 10+x=14

Penelope is going to the carnival to ride the rides. It costs $20 to get into the carnival and ride tickets are $0.50 each. Write an equation that represents this scenario if she spends $35 in all.

• .50x + 20 = 35
• .50x = 35
• .50 + 20x = 35 
• .50x - 20 = 35

Scott works on cars. He charges $35 for each car plus $7 per hour. Write an equation that represents this scenario if Kylie's car bill was $63.

• 7x + 35 = 63
• 7x = 63
• 7x - 35 = 63
• 35x + 7 = 63

WRITE AN EQUATION
For a field trip 4 students rode in cars and the rest filled nine buses. How many students were in each bus if 472 students were on the trip?

• 4x=472
• 9x=472
• 4+9x=472
• 4+x=472

Four friends bought pizza.  They all split the cost evenly.  The pizza was $16.00.  The total bill came to $32.00.  Which equation matches this story.

• 4 + 16 = 32
• 16-4 = 32x
• 16 + 4p = 32
• 4p + 16 = 32

Robyn had some video games then bought 4 more.  Now she has a total of 10 games.  (Remember you are in 7th grade, not 1st grade)

• v - 4 = 10
• v + 4 = 10
• 10 - 4 = v
• 10 + 4 = v

After paying $5.12 for a salad, Daxton has $27.10. How much money did he 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

Lisa is cooking muffins. The recipe calls for 7 cups of sugar. She has already put in 2 cups. How many more cups does she need to put in? 

• 2 + n = 7
• n - 7 = 2
• 2 - n = 7
• 7 + n = 2

Cadin rents a bouncy house for a birthday party.  It costs $30.00 plus $4.00 per hour.  If he spends a total of $78.00, how many hours did he keep the bouncy house?

• $30.00 - $78.00 = $4.00h
• $78.00 + $30.00 = $4.00h
• $30.00 + $4.00h = $78.00
• $30.00 - $4.00h = $78.00

Jazmine joined a music club.  The start up fee was $10.00.  Each song she downloads is $0.99.  If she spent a total of $15.94, how many songs did she download?

• $10.00 + $0.99m = $15.94
• $10.00m + $0.99 = $15.94
• $10.00/$0.99m = $15.94
• $10.00 - $0.99m = $15.94