Decimals and Percents
Write 75% as a decimal
.75
Reduce the ratio to lowest terms
8/12
2/3
Find the percentage
42% of $76
*Your answer needs to have the $ sign!*
42% of $76
42/100 = x/76
100x = 3192
x = $31.92
Find the percentage
36 is what percent of 60?
36/60 = x/100
60x = 3600
x = 60%
OR
36/60 = 6/10 = 0.6 = 60%
Find the percent of increase from 12 to 18
(18-12 = 6) (Difference over what you had)
6/12 = x/100
12x = 600
x = 50%
Write 67.5% as a decimal
.675
Complete the proportion
9/11=x/121
11x=1089
x=99
Find the percentage
6 3/4% of 800
6.75% of 800
6.75/100 = x/800
100x = 5400
x = 54
Find the percentage
85 is what percent of 100?
85/100 = x/100
100x = 8500
x = 85%
OR
85/100 = 85%
Find the percent of decrease from $500 to $400
(500-400 = 100) (Difference over what you had)
100/500 = x/100
500x = 10,000
x = 20%
Write 25% as a fraction
1/4
Reduce the ratio to lowest term
56/16
7/2
Find the percentage
453% of 30
453% of 30
453/100 = x/30
100x = 13,590
x = 135.9
Find the percentage
4 is what percent of 21?
4/21 = x/100
21x = 400
x = 19%
Find the percent of decrease from 35 to 28
(35-28=7) (Difference over what you had)
7/35 = x/100
35x = 700
x = 20%
Write 80% as a fraction
4/5
Complete the proportion
7/12=21/x
7x=252
x=36
Find the percentage
1/2% of 4,000
0.5% of 4,000
0.5/100 = x/4,000
100x = 2,000
x = 20
Find the percentage
22 is what percent of 77?
22/77 = x/100
77x = 2200
x = 28.5% = 29%
Find the percent of increase from $50 to $80
(50-80=30) (Difference over what you had)
30/50 = x/100
50x = 3,000
x = 60%
Write 62.5% as a fraction
5/8
Complete the proportion
4/9=7/x
4x=63
x=15 3/4 or 15.75
Find the percentage
138% of 264
138% of 264
138/100 = x/264
100x = 36,432
x = 364.32
Find the percentage
75 is what percent of 120?
75/120 = x/100
120x = 7500
x = 62.5% = 63%
Find the percent of increase from 76 to 94
(76-94=18) (Difference over what you had)
18/76 = x/100
76x = 1,800
x = 23.6 = 24%