Ratios & Unit Rates
Write the ratio as a fraction in simplest form:
25 to 10
5/2
Solve the proportion (round to nearest tenth if necessary):
3/5 = a/60
a = 36
Write the percent as a decimal and a fraction in simplest form:
6%
0.06; 3/50
Find the percent of change to nearest tenth and tell whether it is an increase or decrease:
120 to 80
33.3% decrease
Regular price of $100; discount of 20%. What is the final price?
$80
Write the ratio as a fraction in simplest form:
15 : 30
1/2
Solve the proportion (round to nearest tenth if necessary):
8/15 = y/50
y = 26.7
Write the percent as a decimal and a fraction in simplest form:
8.5%
0.085; 17/200
Find the percent of change to nearest tenth and tell whether it is an increase or decrease:
175 to 231
32% increase
Regular price of $60; discount of 12%. What is the final price?
$52.80
Find the unit rate for:
a car backing up 15 ft in 5 secs
3 ft
1 sec
Solve the proportion (round to nearest tenth if necessary):
z/40 = 11/15
z = 29.3
Write the percent as a decimal and a fraction in simplest form:
250%
2.5; 2 1/2 = 5/2
Find the percent of change to nearest tenth and tell whether it is an increase or decrease:
$4 to $3.50
12.5% decrease
A $12 DVD is marked up 15%; what is the selling price?
$13.80
Find the unit rate for:
500 miles in 10 hours
50 mile
1 hour
An athlete measures their heartbeat while exercising. Their heart beats 32 times in 15 secs. Find their heart rate per minute.
128 beats/min
A baseball player has a batting average of 0.275; write as a percent and fraction in simplest form.
27.5; 11/40
Last year 150 people attended the performance. This year 175 people attended. Find the percent of change to nearest tenth and tell whether it is an increase or decrease.
16.7% increase
A $65 pair of shoes is marked up 20%; what is the selling price?
$78
Find the unit rate for:
A person running 40 yds in 6 secs
(6 2/3 yds)/(1sec)
A map has a scale of 1 cm : 5 km. Two cities are 4.5 cm apart on the map. What is the actual distance between the 2 cities?
22.5 km
Three students in a class of 25 are absent. Write as a decimal and a percent for student who are at school.
.88; 88%
A bicycle sold for $200 last month and is on sale for $170 this month. Find the percent of change to nearest tenth and tell whether it is an increase or decrease.
15% decrease
What number is 27% of 88?
23.76