Real World Rational Numbers

Fabian is doing a little pipe laying for a school project. He had a piece of pipe 4 feet long. He cut off a piece that was 2 ⅝ feet long. He needs to determine how long the piece of pipe was that he has left in order to see if he has enough to complete his project. If he needs 5 more pieces that are each 3/10 of a foot long, does he need more pipe? If so, how much?

• yes, 1/2 foot more.

• yes, 1/8 foot more

• yes, 3/8 feet more

• No, he has enough,

Vanessa needs to save $198 for a bike. She has $45 in her savings account. She saves $25.75 each week. She also has to spend $25 to buy a present for a friend. How many weeks will Vanessa need to save in order to have enough for her bike?

• 5 weeks

• 6 weeks

• 7 weeks

• 8 weeks

Cameron starts with $30. He earns $8.00 per hour plus an additional bonus of $12 each day. He spends $8.00 for lunch. If he has $94 at the end of the day, for how many hours did he work?

• 4 hours

• 4 hours 30 minutes

• 5 hours

• 5 hours 30 minutes

You are an editor for your school yearbook. Each row of photos is 8 ⅝ inches wide, including the margin. Each photo is 1 ¼ inches wide, the space between each photo is ⅛ inch, and each row's top and bottom margins are ¼ inch each. How many photos can fit in one row?

• 3 photos can fit

• 4 photos cacn fit

• 5 photos can fit

• 6 photos can fit

Most liquids when cooled will simply shrink. Water on the other hand, actually expands when it is frozen. Its volume will increase by about 9 percent. Suppose you have one third of a gallon of water that gets frozen. What is the volume of the ice?

• 2/3 of a gallon

• 19/45 of a gallon

• 109/300 of a gallon

• 3/4 of a gallon

Gianna has been saving $5.50 a week from her allowance for several weeks. Today she spent $32, which was about ⅓ of her savings. How many weeks, has she been saving money?

• 11 weeks

• 13 weeks

• 15 weeks

• 17 weeks

Home Depot's parking lot that will hold 1000 vehicles. ⅖ of the parking spaces are for cars. When you went to buy paint, there were 200 cars and some trucks in the parking lot. The parking lot was ¾ full. How many trucks were in it?

• 400 trucks

• 450 trucks

• 500 trucks

• 550 trucks

Amir is making snowballs to build a fort on the winter break. Amir can build 15 snowballs in an hour but 2 snowballs melt every 15 minutes. How long will it take him to build 210 snowballs?

• 3 hours

• 10 hours

• 23 hours

• 30 hours

The recipe for sugar cookies requires 2 ¼ cups of sugar for 5 people. You need to bake sugar cookies for 8 people. How many cups of sugar do you need to use?

• 3 cups

• 3 1/2 cups

• 3 3/5 cups

• 4 cups

The high temperature for the first five days in December were as follows 28°, 3°, -2°, -4°, and 12°. What is the average high temperature of the five days? If the next day is 0°, would the average of the six days increase or decrease?

• 7.4^o; decrease

• 7.4^o; increase

• 16.2^o; decrease

• 16.2^o; increase