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Operations with Rational NumbersPowerPoint Presentation

Operations with Rational Numbers

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**enya** - Follow User

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Question #1

Zach’s cell phone charges $34.95 per month for basic service and $0.15 per text message. What is the cost per month if he sends 300 text messages?

Question #2

- Pamela is making a wooden model of a flag for her school project. She found a bargain on square pieces of wood. If her flag is to be 12 inches by 8 inches, what is a reasonable area for the square piece of wood if she only wants to make one cut?
- A. 40 square inches
- B. 96 square inches
- C. 144 square inches
- D. 225 square inches

Question #3

A toy box is 12 inches long, 30 inches wide, and 18 inches high. What is the measure of the volume of the toy box in cubic feet?

Question #4

Kitty Hawk Helps held a canned food drive for the homeless. The 6th graders brought in 4.25 boxes of canned goods, the 7th brought in 5.4 boxes, and the 8th grade brought in 6 ⅜ boxes. What is the total number of boxes of canned goods brought in written as a fraction?

Question #5

The Marriott River Center charges $89 per night plus $8.25 per night for tax. What would be the cost for staying 5 nights?

Question #6

Erica works at Red Robin and earns $7.25 per hour. She usually works between 30 and 35 hours per week. Which of the following is a reasonable estimate for how much she earns in a week?

A. $200

B. $217.50

C. $225

D. $253.75

Question #7

At a local doctors office, 30% of all patients are treated for colds, 25% for asthma, and 45% for injuries. Write an equation telling how to find “p”, the number of patients seen for injuries if 120 people went to the doctor.

How many patients were seen for injuries?

Question #8

Sebastian purchased 12 DVD’s for $135 at Best Buy. What was the price per DVD that Sebastian paid?

Question #9

Amanda invested $500 into the stock market. During the first year her stocks gained 45% in value. How much were the stocks worth at the end of the first year?

Question #10

The temperature at the North Pole rose from -14 degrees to -6 degrees in 3 hours. How much did the temperature change in those 3 hours?

Question #11

Joey wants to buy a new flat screen TV that costs $750. He has $250 in his savings account and earns $25 for each lawn he mows. Which equation below can be used to find “m”, the number of lawns he must mow to buy the TV?

A. 250m + 25 = 750

B. 25m – 250 = 750

C. 750 = 250 + 25m

D. 750 = 250 – 25m

Question #12

The equation y = 15x – 9 represents the relationship between the amount of women “y” and the amount of men “x” in a beauty school’s classroom. What would be the amount of women in the classroom if there were only 4 men?

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