Understanding Percents
What is the missing value.
What is 6/10 as a percent?
60%
Because 6/10=60/100
How do you write 0.65 as a percent?
65%
Because 0.65 is = to 65/100 which is out of 100
0.4/100%=
0.4/100%= 4/1000
Because 0.4%= 0.4/100 and you need to multiply it by 10 to get rid of the decimal point.
What is 50% of 80?
40
Because 50% is half.
10% of what number is 20?
10/100= 20/n?
n=200
Because 10n= 2000. (Divide both sides by 10 to solve for n)
what is 4/100 as a percent?
4%
Because the denominator is already out of 100 so the numerator becomes the %
Write 0.09 as a percent.
9%
Because in 0.09, the 9 is in the hundredths place so it's = to 9/100
What is 225% as a simplified fraction?
9/5 or 1 4/5
Because 225%= 225/100 (numerator and denominator are both divisible by 25)
What is 20% of $75?
$15
Because 20%=0.20
.20 x 75= 15
25% of what number is 45?
25/100= 45/n?
Because 25n= 4500 (divide both sides by 25 to solve for n)
What is 2/5 as a percent?
40%
Because 2/5=4/10=40/100
Write 20/40 as a percent.
50%
Because 20/40 simplifies to 1/2.
What is 645% as a decimal?
6.45
What is 16 out of 40 as a percent?
40%
16/40 simplifies to 4/10 which is equal to 40/100
or
16 divided by 40 = 0.4= 0.40= 40%
40% of what number is 16?
40/100= 16/n
40n= 1600
n= 40
What is 8/25 as a percent?
32%
Because 8/25= 32/100
Write 17/50 as a percent.
34%
0.0085
What is 56% of 250
140
Because 0.56 x 250= 140
300/100= 180/n
300n= 18000
n= 60
Write 45% as a fraction in simplest form.
9/20
Because 45 and 100 both share a common factor of 5, so when you divide 45/100 by 5 on top and bottom you get 9/20.
If you have 15 pillows, and 5 of them are red, 3 of them are green, 4 are blue and 3 are orange.
How many are NOT orange?
Write it as a fraction in simplest form and as a decimal.
4/5 and 0.8 or 0.80
Write 3/5% as a decimal.
0.006
Because 3/5%= 6/10%= 0.6/100= 6/1000= 0.006
A new bike costs $60. You have a 15% off coupon. What will the new price of the bike be after you take off the discount?
$51.00
Because
15% of 60
0.15 x 60= $9.00
$60.00 - $9.00= $51.00
Frank was selling cups of lemonade with his friends. He sold 80% of his total cups. He sold a total of 24 cups. How many total cups did he start with?
80/100= 24/n
80n= 2400
n= 30
Frank started with a total of 30 cups.