Aaron purchased 15 pounds of chocolate for $22.80. What is the cost per pound of chocolate?
$1.50
Martha can sew 1/3 of a scarf is 1/2 hour. How much can Martha sew per hour?
2/3 of a scarf
A computer costs $1,250 before tax and $1,325 after tax. What is the sales tax rate?
6%
An infants' height went from 21 inches at birth to 25 inches at her first birthday. What percent did the baby's height increase in that first year?
19%
A recipe calls for 1/4 cup of butter to make 1 1/2 dozen cookies. How many cups of butter are required to make 4 dozen cookies?
2/3 cup butter
Carol is packaging chocolate chip cookies into bags for her teachers. She wants to give 12 cookies to each teacher. If there are T teachers in the school, write an equation to find the number of cookies, N, she needs to make?
N = 12T
A bungee cable of 3 1/2 feet can stretch to 6 feet. If this proportion remains the same for all lengths of bungee cables, how many feet of bungee cable is needed to stretch to a distance of 10 feet?
5 5/6 ot 5.83 feet
A notebook costs $2.50 before tax and $2.65 after tax. What is the tax rate for the notebook?
6%
A bathtub fills at a constant rate. The amount of water in the tub increases by 1/2 gallon every 1/10 minute. What is the unit rate at which the tub fills?
5 gallons per minute
Solve for n:
5/20 = n/36
9
Time(hours) Distance(miles)
2 130
3 195
4 260
Write an equation using hours(h) and miles(m) instead of x and y
m = 65h
Does the following table represent a proportional relationship?
x 1 2 3 4
y 5 6 7 8
no, because all the ratios of y to x are not equal
A new tennis racket will cost $29.99. What will be the final cost if the tax rate is 6.5%?
$31.94
A painting crew paints 1/5 of a room in 1/3 hour. How many rooms per hour is the crew painting?
3/5 room per hour
Joey fixes computers for extra money. He charges $15.50 for every hour it takes him to fix a computer. Create an equation that shows the total cost, c, for Joey to fix a computer if it takes, h, hours to fix it?
C = 15.50h
A pair of shoes usually sells for $70. If the shoes are 40% off, and sales tax is 7%, what is the final price?
$44.94
A go cart goes around a 1/10 mile track 18 times in 12 minutes. What is the go cart's average speed, in miles per minute?
.15 or 3/20
Number of days 1 2 3 4
Hours worked 6 12 18 24
What is the COP?
6 hours per day
A company is expanding its building area from 11,000 square feet to 14,080 square feet. What is the percent increase in area?
28%
Regan purchased a jacket for $60 and a scarf for $18. If tax is 6%, what is Regan's change if she paid with a $100?
$17.32
An accountant is tracking how well 2 new phones are selling. The store has sold 288 Iphone 7's in 12 days and 135 Samsung S6 in 5 days? Which phone has sold more per day, and how many more per day has it sold?
Samsung sold 3 more phones
Noah has a large rectangular plate and a small rectangular plate. The small plate is 6 inches long and 8 inches wide. The large one is 9 inches long. How many inches wide would the large plate be?
12 inches
Julia purchases a dinner for $19 and a soft drink fo $2.50 at a nearby steakhouse. He pays 8% tax rate and tips 20% on the food, drink, and tax. What is the total amount that Julia will pay?
$27.86
A line passing through which of the following pairs of coordinates represents a proportional relationship?
A (2,5) and (3,6)
B (4,8) and (12/24)
C (1,1) and (2,20)
D (5,10) and (15,20)
B
Nicole purchased a pair of earrings and a cell phone case. The earrings were normally $80, but were 15% off. The cell phone case was $18. What was the total of her purchases, before tax?
$86