Quiz 8 review

1. Solve for x:

-4x=200

Tags

CCSS.6.EE.B.7

1. Solve for x:

2. 7x+7=21

Tags

CCSS.7.EE.B.4A

In 2022, a tree was 5 feet tall.  In 2023, the tree was 9 feet tall.  Which equation would be used to find how many feet the tree grew?

• 5+x=9

• 5-x=9

• 9+x=5

Tags

CCSS.HSA.CED.A.3

1. Kyle had his car repaired.  He was charged $35 per hour, x, for labor in addition to $150 for parts.  His total bill was $389 (before taxes.)  Which of the following equations correctly models this situation?

• 150x+35=389

• 35x+150=389

• 185x=389

Answer: 35x+150=389

Using your answer choice from question 3, solve the equation to determine the number of hours spent on the car repair.  Round to the nearest tenth if necessary.

Tags

CCSS.7.EE.B.4A

Which equation should be used to solve for the missing variable in this diagram?

• 1. 5x+45=180

• 45=5x

• 50x=90

Tags

CCSS.7.G.B.5

Solve for x

Tags

CCSS.7.G.B.5

Solve for x.

2x+3x+36.5+2x+36.5=360

Tags

CCSS.8.G.A.5

There were 22 students in a club last year, but this year, there are 30 students.  Calculate the percent change.  Round to the nearest whole number.

Tags

CCSS.6.RP.A.3C

If there are 400 people who like coffee more than tea, but that number has decreased by 65%, how many people still prefer coffee over tea?

Tags

CCSS.6.RP.A.3C