Express the ratio 10 boys to 22 girls as a ratio in simplest form.
100
m=26
Find the value of m that makes 6.5/1.3 = m/5.2 a proportion.
100
2/3
What is the scale factor is 8 inches = 1 foot.?
100
.125 and 1/8
Express 12.5% as a fraction in simplest form and a decimal.
100
20%
Find the % of change from 325 to 390.
200
21/108 = 7/36
Express the ratio 21 inches to 3 yards as a fraction in simplest form. **HINT** 1 yd = 3 ft and 1 ft = 12in.
200
8/20 = 2/x x = 5
Write a proportion that could be used to solve for the variable: Then solve for the variable.
8 pencils in 2 boxes
20 pencils in x boxes
200
92.8 feet
A model airplane is built using a 1:16 scale. On the model the length of the wingspan is 5.8 feet. What is the actual length of the wing?
200
0.5%
Express 3/600 as a %. Round to the nearest tenth if necessary.
200
-20%
A $110 sweater is on sale for $80. What is the % of change?
300
12-oz bottle - $.38; 16-oz bottle $.41. The 12-oz bottle costs less
A 12-oz. bottle of cleaner costs $4.50. A 16-oz bottle of cleaner costs $6.56. Which costs less per ounce?
300
80%
Twenty is what percent of 25?
300
1in = 70 feet
In a scale model of Kingda Ka, the highest hill has a height of 6 inches. If the actual height of the hill is 420ft, what is the scale of the model?
300
1/500, .002
Express 0.2% as a fraction in simplest form and a decimal.
300
1/3
Suppose a die is rolled. What is the probability of rolling a 4 or 5?
400
19.2 m/min
Convert 32 cm/s to m/min **HINT** 1m = 100cm
400
1.76
What number is 8.8% of 20?
400
84 feet
If the scale of an exercise room is .25 in = 3 feet. What is the actual size of the room if the model is 7 inches?
400
$120
Compute mentally. You see a pair of shoes for $200. They are 40% off. How much do you pay for them at the register?
400
11/18
There are 2 red marbles, 4 blur marbles, 7 green marbles, and 5 yellow marbles in a bag. Suppose one marble is selected at random. What is...
P(not green)