Integers & Rational #´s
What is the value of 12.5 − 31/2 + 1 1/4?
-7/4 OR -1 3/4
Simplify the expression: 9x + 8 + 3x + 4
12x + 12
A machine in a factory makes 2 1/4 pounds of nails in 1 1/2 hours. At what rate, in pounds per hour, does the machine make nails?
1 1/2 nails per hour
What is 42% of 90?
37.8
If you flip a coin and draw a card out of a deck of 52 cards, how many possible outcomes are there?
104
Solve: 2(−6+2)÷4
-2
Simplify the expression: 2(3x + 4) + 10
6x + 18
Samara gets paid $300 for working 40 hours. How much money does she make per hour?
$7.50 per hour
A Kindle Fire has a retail cost of $119.99. What is the cost after a 30% discount?
$83.99
Based on a weather report, the probability that it will rain tomorrow is 0.13. Which word describes the likelihood that it will rain tomorrow?
Unlikely
A gallon jug of milk is 3/4 full. After breakfast, the jug is 1/12 full. Find the difference between the amounts before breakfast and after breakfast.
2/3
Solve for x: 5x + 22 = 47
x = 5
In an animal shelter, the ratio of dogs to cats is 5 to 3. There are 25 dogs. Write and solve a proportion to find the number c of cats.
c = 15 cats
Lily´s little brother weighed 8 pounds when he was born. He now weighs 36 pounds. What is the percent increase in weight of her little brother?
350%
Kelly has a bag containing white and yellow marbles. Kelly randomly selects one marble from the bag, records the result, and returns the marble to the bag. The results of the first 65 selections are: A white marble was selected 41 times. A yellow marble was selected 24 times. Based on these results, what is the probability that the next marble Kelly selects, rounded to the nearest percent, will be white?
63%
At sunset, a thermometer had a reading of 4°F. During the night, the temperature decreased 15°F. After the decrease, what is the total number of degrees that the temperature must change for the thermometer to read 0°F ?
11°F
Kah'Maree goes bowling. He has $25 to spend. He spends $4.25 to rent shoes. He spends $2.50 for each game he bowls. Write an inequality Kah'Maree can use to determine x, the greatest number of games he can bowl.
2.50x + 4.25 < 25
Hamburger is on sale for 3 pounds for $6. If you buy 10 pounds of hamburger, how much will you have to pay?
$20
How much interest does a $407 investment earn at 6% over 7 years?
$170.94
A museum employee surveys a random sample of 350 visitors to the museum. Of those visitors, 266 stopped at the gift shop. Based on these results, about how many people out of 2,300 visitors to the museum would be expected to stop at the gift shop?
1,748 people
A cook removes a package of food from a freezer and begins to defrost the package. The initial temperature of the package of food is 15 °F. At noon, the temperature of the package of food has increased to 35 °F. What is the total change in temperature, in degrees Fahrenheit, for the package of food?
20 °F
Mr. Caruso spent a total of $175 for 4 admission tickets and parking at a baseball game. The cost of each admission ticket was the same amount, including tax. The cost of parking was $25. What was the cost, in dollars, of each admission ticket, including tax?
$37.50 per ticket
Ms. Bouchard is driving from South Bend to Indianapolis. She measures a distance of 4.3 cm between the cities on her map. What is the actual distance between the cities if the map scale is 1 cm = 30 miles?
129 miles
Mr. Jensen purchased an airline ticket on a website. The original price of the airline ticket was $473.00. He used a coupon code to receive a 20% discount. A sales tax of 12% was applied after the discount. What was the total purchase price of the airline ticket after the discount, including sales tax?
$423.81
Find the mean, median, mode, and range of the following data set:
19, 21, 18, 17, 18, 22, 46
mean = 23
median = 19
mode = 18
range = 29