Ratios and proportions
3300 words
A circle has a radius of 12 inches. What is the diameter? What is the circumference? Round to the nearest tenth
diameter = 24
circumference = 7.6 inches
Which expression matches: -5( 2x - 3) - 8x
A: 5( 2x - 8) B: 3(-6x + 5) C: -3 ( 5x - 6)
B
Jace has a spinner, that is numbered 1-8 and a coin. What is the probability that the spinner lands on an even number and a coin lands on heads?
1/4
Jose P. wants to purchase a soccer jersey for $85. The store will sell it for a 12% discount. What is the discount amount?
$10.20
The cost of buying candy is proportional to the pounds that you purchase. If 7 pounds cost $9.24, how much would 12.5 pounds cost?
$16.50
Angles 1 and 2 are complementary angles. Angle 1 measures 27o and angle two is x + 20. What is the value of x?
43o
Distribute and combine: -3 ( 2K - 6 -7R) + 5K + 4
-K +22 +21R
Kellum has three different kinds of ice cream, either a cup or a cone and 2 kinds of toppings. How many combinations can he make?
12 combinations
Gerald saved $42. This was ¾ the price he needs for a new football jersey. How much does he need in total for the jersey?
$56
Keisy had a map with a scale factor of 6in to 27 feet. If the actual map read 82 feet, what would the approximate distance be on the map?
18.2 inches
The volume of a rectangular prism is 18.5 ft3 . The length is 1.5 feet and the width is 4 feet. To the nearest tenth, how high is the prism?
3.1 ft
Simplify: 4 - 3(x + 6) - 2x + 10
-5x -4
10, 17, 4, 8, 12, 16, 22, 19, 11, 14, 11
7
Lennox average 12 ppg last year. This year, she averaged 18 points per game. What was her percent increase?
50%
It takes 2 ½ cups of milk for every 1 ¼ cup of pancake mix. If I was making 3 cups of pancake mix, how many cups of milk would I need?
6 cups
Angle 1 is 2x + 43 and Angle 2 measures 3x - 18. What is the value of angle 1, if the angles are supplementary?
105o
Solve: -2 ( x - 5) - 10x = - 14
x = 2
Carter had 15 checkers in a container. Ten were red and 5 were black. He pulled out 2 checkers, without replacement. What is the probability he pulls out a black one each time? Round to the nearest tenth
9.5%
Nick has $70 to spend. He purchases a shirt for 1/4 of the money, a new glove for $22 and 40% on a new bat. How much does he have left?
$2.50
A 30 gallon fish tank is being filled at a rate of ½ a gallon per minute. How many minutes would it take until the fish tank was ⅔ of the way full?
40 minutes
Dakota was painting her room, which is in the shape of a rectangular prism. The length is 12ft. The width is 8 ft. and the height is 10 ft. If she doesn’t paint the ceiling or the floor, what is the surface area that she will paint?
400 sq feet
Josilyn has x amount of beads. Rachel has 3 more than Josilyn. Together, they have 28 beads. How many does Josilyn have?
7
Which statement is true?
Set 1: 85, 90, 88, 76, 64, 90
Set 2: 79, 85, 90, 77, 82, 87
A. The mean absolute deviations of set 2 is larger.
B. The mean absolute deviation of set 1 is larger.
B
The wholesale price for an ATV is $400.
A Company sells it retail for 30% higher than the wholesale price. The store then put the item on sale at 10% off the retail price.
A: The wholesale price is $120 more than the retail price
B: The retail price is $52 less than the wholesale price.
C: The wholesale price is $52 less than the retail price
D: The retail cost is $68 higher than the wholesale price
D