Ratios
Simplify the following:
18:27
2:3
Convert the following to mph:
(1 km = 0.62 mi)
24 km/hr
14.88 mph
Convert into a percentage:
5/6
83 1/3 %
or 83.3%
Express the following as a decimal:
3%
0.03
Mrs. Lee's monthly expenses increased from $3,200 to $3,400. Find the percentage increase in her expenses.
6.25%
Simplify the following:
1 1/2 : 4 1/2
1:3
Convert the following into mph:
(1 km = 0.62 mi)
126 km/hr
78.12 mph
Convert the following into a percent:
0.032
3.2%
Express the following as a decimal:
46%
0.46
The water level in a tank decreased from 30 inches to 25.5 inches. Find the percentage decrease in the water level.
15%
Simplify the following:
80 cents : $2.00
2:5
Convert the following into m/s:
24 km/hr
6.67 m/s
or 6 2/3 m/s
Convert the following into a percent:
2 3/40
207 1/2 %
or 207.5%
Express the following as a decimal:
648%
6.48
During a sale, a watch was sold for $784. If the marked price of the watch is $980, find the percentage discount.
20%
Simplify the following:
1 1/3 hours: 20 min
4:1
Convert the following into m/s:
126 km/hr
35 m/s
Express the following as a fraction:
4 2/3 %
7/150
Find the unknown quantity:
30% of b is 18
b=60
A hairdresser charges $20 for a haircut excluding sales tax. If the tax rate is 7%
(a) how much is the sales tax?
(b) how much does a customer have to pay inclusive of sales tax?
(a) $1.40
(b) $21.40
If 2x=5y, Find x:y
5:2
Express the following as a fraction:
109 5/11 %
301/275
or 1 26/275
37.5% of $A is $108
$A = $288