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Simplifying Ratios
Ratios & Proportions
Discounts
Percentage Problem
100
Simplify 20/40
1/2 or 1:2
100
Which is greater? 6/8 or 4/5
4/5
100
A $45 shirt sold for $36. How much money would you save (discount)?
45-36 = $9
100
5% of 220 is _______
5/100 = x/200 x = 11
200
Simplify 15/45
1/3 or 1:3
200
Which is greater? 5/9 or 10/18
5/9 = 10/18
200
A $64 shirt sold at 50% off. How much was the discount in dollars?
.50*64 = $32
200
30% of _______ is 15
30/100 = 15/x x = 50
300
Simplify 9 inches/1 foot
9:12 = 3:4 or 3/4
300
Solve for x: x/20 = 12/48
48x=240 x=5
300
A $240 television sold at 20% off. How much was the sale price ?
240*(.20)=48 240-48 = $192
300
____% of 120 is 24
x/100 = 24/120 x = 20 = 20%
400
Simplify 20 minutes/2 hours
20:120=1:6 or 1/6
400
Solve for x: (x+4)/12 = 8/16
16(x+4)=12*8 16x+64=96 16x=32 x=2
400
A $150 camera sold at 40% off. How much did it sell for?
$90
400
Whitney bought a $60 sweater. Find the sales tax (6%).
60*0.06 = $3.60
500
Simplify 6 months/3 years
6:36=1:6 or 1/6
500
If it takes 1 1/2 cups of sugar to make 36 pancakes, how much sugar would it take to make 1 dozen pancakes?
1.5/36=x/12 36x=12*1.5 36x=18 x=1/2
500
A $400 iPad was on sale at 25% off. Cindy had a coupon for an additional $25 off the sale price. How much did it actually cost her?
400*.75 = 300 Sale price=$300... Then, 300-25 = $275
500
Richard bought a $40 pair of shorts for $28. What was the % discount?
(40-28)/40 = 0.30 = 30%