Ratios
George read 126 pages of a book in 18 minutes. How many pages did he read in 1 minute?
7 pages per minute
5 shovels of sand are mixed with 4 shovels of gravel to make cement. What is the number of shovels of gravel needed for 45 shovels of sand.
What is 36?
Write a ratio for this situation: 310 heartbeats per 5 minutes
310 heartbeats/5 minutes
The science materials cost $65.70 to do the experiment. If 9 students participated in the experiment, what was the unit cost per student?
$7.30
Ari can walk 2 miles in 40 min. What is the amount of time it will take him to walk 4 miles.
What is 80 min.?
Write a ratio. The recipe calls for 2 eggs for every 8 cups of flour.
2 eggs / 8 cups
The toys cost $69.95 for 5 models. What is the unit rate for each model toy?
$13.99 per model toy
Paul used 6 black tiles and 12 white tiles for a pattern. If Paul used 60 white tiles, how many black tiles did he use?
30 black tiles
DOUBLE POINTS!!!
Apples sell 4 for $2.40. How much do 6 apples cost?
$3.60
The ratio of white rabbits to grey rabbits is 3:7. Write a ratio for grey rabbits to TOTAL rabbits.
7 grey / 10 total
A factory can produce mousetraps at a rate of 1500 traps in 3 hours. What is the unit rate per hour?
500 traps per hour
30 buses can carry 1500 people. What is the number of people that can be carried by 5 buses.
250 people
Rose spent $2.00 for 20 pieces of gum. Joe spent $1.50 for 10 pieces of gum. Who got the better deal and why?
Rose got the better deal. She got one piece for $0.10 and Joe spent $0.15 for one piece.
The ratio of pink mice to black mice is 2:3. Write a ratio of white mice to total mice.
0 mice / 5 mice
Hillary earned $45 babysitting. If she babysat for 6 hours, what was her rate per hour?
$7.50 per hour
Ivy's Fresh Eggs transports its eggs in crates. It takes 2 trucks to carry 80 crates. What is the number of crates that 8 trucks can carry.
320 crates
DOUBLE POINTS!!! Larry can type 225 words in 3 minutes. How many words can he type in 10 minutes?
750 words