7th grade math review- #1

8x + 24

2 (4x + 12)

x < -3

8x + 10 < -14

-8

The temperature was -5 degrees at 7:00pm one day in Kentucky. A cold front lowered the temperature over the next hour by 3 degrees. What was the new temperature?

5.00x + 150 = 500

Write an equation: Will is a server at Cheddars. On Saturday, he makes $5.00 an hour plus $150 in tips. His total at the end of his shift was $500.

x < 3

-2x + 6 > 0

x = 1

2x + 10 = 12

18x + 30

3 (6x + 10)

x =-1

3x + 13 = 10

x = 6

4x = 24

$85.60

A credit card customer owes $325.60. They are only able to make a payment of $120. How much money does the customer still owe?

8.15

A jug of orange juice contains 40.75 fluid ounces. It is shared equally among 5 people. How many ounces of orange juice does each person receive?

$1.56

A shopper bought a 12-pound bag of oranges for $18.75. What is the unit price per ounce?

$62.88

Cathy is purchasing a dvd player and tv at the local electronic store. The dvd player costs $49.36 and the tv costs $705.20. If she plans to pay for them in 12 equal payments, what is her monthly cost?

-17x + 17y -27

Combine like terms: -9x + 17y - 8x -17 - 10

y + 18x

Combine like terms: -8y + 8x + 9y + 10x

11x + 2

Combine like terms: 4x + 7x- 12 + 14

3.5

If a car travels at a rate of 64 miles per hour, how long will it take the car to travel 224 miles?

$4.70

Mrs. White is going to eat at First Watch and her total bill is $23.50. If Mrs. White wants to leave a 20% tip, how much is the tip?

$2.43

Ms. Cornett decides to eat at Outback Steakhouse. Her total bill is $13.50. If Ms. Cornett wants to leave a 18% tip, how much is the tip?

3

Ms. Dewar can run a 7 minute mile. If she runs for 21 minutes, how many miles does she run?

15

Ms. Dewar eats 45 cockroaches in 3 hours. How many does she eat in 1 hour?

9

Ms. White makes 72 cookies in 8 hours. How many cookies does she make in 1 hour?

200 + 50x = 450

Write an equation: A plumber charges an initial fee of $200 plus an hourly fee of $50. Mr. Collins paid the plumber $450.

150x + 5.00 = 500

Write an equation: Olivia paid a $5.00 initiation fee to join a gym. She also pays a fee of $150 per month. Olivia paid a total of $500.