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100
A test has 20 questions. If peter gets 80% correct, how many questions did peter missed?
80%
100
What percent of 20 is 30?
30 is 150% of 20.
100
Find 3/4 of 20.
15
100
When a grizzly bear hibernates, its heart rate drops to 10 beats per minute, which is 20, percent of its normal value. What is a grizzly bear's normal heart rate when not hibernating?
A grizzly bear's normal heart rate when it is not hibernating is 50 beats per minute.
200
The art club had an election to select a president. 27 out of the 30 members of the art club voted in the election. What percentage of the members voted?
90%
200
What is 35% of 80?
28 is 35% of 80.
200
10 is 2/3 of what number?
15
200
A piece of pipe is 30 3\4 inches long. if five pieces, each 4 1/3 inches long, are cut from the pipe, how many inches of pipe remain?
9 1/12in of Pipe remain
300
At Nancy's Beading Boutique, there are 1 plastic bead and 9 metal beads on clearance. What percentage of the beads on clearance are plastic?
10%
300
45% of what is 9?
9 is 45% of 20.
300
12 is what fractional part of 20?
3/5
300
Cassandra invested one part of her $10,000 at 7.5% per year and the other part at 8.5% per year. Her income from the two investment was $820. How much did she invest at each rate?
$7000
400
At Nancy's Beading Boutique, there are 1 plastic bead and 9 metal beads on clearance. What percentage of the beads on clearance are plastic?
75%
400
Suppose you bought something that was priced at $6.95, and the total bill was $7.61. What is the sales tax rate in this city? (Round answer to Nearest Whole Number.)
The sales tax rate is 9.5%.
400
Find 12.5% of 400.
50
400
When a grizzly bear hibernates, its heart rate drops to 10 beats per minute, which is 20%, percent of its normal value. What is a grizzly bear's normal heart rate when not hibernating?
50 beats per minute
500
Ashley's Cafe has regular coffee and decaffeinated coffee. This morning, the cafe served 12 regular coffees and 28 decaffeinated coffees. What percentage of the coffees served were regular?
30%
500
Suppose a certain item used to sell for seventy-five cents a pound, you see that it's been marked up to eighty-one cents a pound. What is the percent increase?
An 8% increase in price per pound.
500
What is 87 and 1/2% of 150?
131.25 or 131 and 1/4
500
Out of a world population of approximately 6.6 billion, 1.2 billion people live in the richer countries of Europe, North America, Japan and Oceania and is growing at the rate of 0.25% per year, while the other 5.4 billion people live in the lees developed countries and is growing at the rate of 1.5%. What will be the world population in 5 years if we assume that these rates of increase will stay constant for the next 5 years. (round answer to 3 significant digits)
7,000,000