Translating Real World Equations

Breanna went to the mall and spent $35.00 on shoes. When she she got home she had $40.00 in her purse. Which equation can be used to find the amount of money she started with?

• 35.00 + x = 40.00
• 40.00 - 35.00 = x
• 35.00x = 40.00
• 40.00x = 35.00

In 2010, a tree was 8 feet tall. In 2011 the tree was 14 feet tall. Write an equation and find how many feet f the tree grew. Write an equation to solve this problem. Use f as your variable.

• f + 8 = 14
• f - 8 = 14
• f/8 = 14
• 8f=14

Last Friday Cicely had $22.50. Over the weekend she received some money for cleaning out the attic. She now has $32. Which equation represents how much money she received?

• 22.50/ x = 32
• 32/ 22.50 = x
• 22.50 + x = 32
• 32 - x = 22.50

The percent of silver SUVs increased by 7.9%
between 1998 and 2000. If x% of SUVs were silver in 1998, which equation represents this relationship?

• x + 7.9 = 14.1
• x - 7.9 = 14.1
• 7.9x = 14.1
• 7.9 - x = 14.1

What equation matches this situation?
Robyn had some video games then bought 4 more.  Now she has a total of 10 games.

• v - 4 = 10
• v + 4 = 10
• 10 - 4 = v
• Answer not Given

After paying $5.12 for a salad, Kamauri 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

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

Which choice models this situation?

Last week, Tina worked 35 hours in 5 days. She worked the same number of hours each day. How many hours did she work each day?

• h - 5 = 35

• h + 5 = 35

• 5h = 35

• h/5 = 35

Which equation correctly represents this scenario:

Apples cost $2 per pound, a. How many pounds of apples can you buy for $20?

Cheryl gets paid $8 per hour, h, for her job at the record store. She made a total of $96 last week. Which equation models this situation?

• 96h = 8

• h/96 = 8

• 8h = 96

• h/8 = 96