Ratios
Convert this to a unit rate:
45 dollars / 3 hours
15 dollars /1 hour
n/4=12/6
Find n
n=8
What number needs to be the denominator to be a unit rate?
1
n/6=5/30
Find n
n=1
Tom and Paul are building a brick wall. Tom lays 420 bricks in 6 hours. Paul lays 240 bricks in 3 hours. Whose rate is faster?
70<80
Paul's rate is faster
If 2 liters of sea water contain 70 grams of salt, how much salt is in 32 liters of sea water?
n = 1,120 grams
Ann’s Bakery bakes 450 loaves of bread in 3 days. Mark’s Bakery bakes 560 loaves of bread in 4 days. Which bakery bakes bread at the faster rate?
150>140
Ann's rate is faster
A rain gauge collected 0.2 inches of rain in 30 minutes. If it keeps raining at the same rate, what’s the total time it will take to collect 1 inch of rain?
n=150 min
Sam earned $380 working for 8 hours. Rich earned $195 working for 4 hours. Who has the higher rate of pay?
Extra points: How much more is the other making?
$47.50 < $48.75
Rich’s rate is higher!
Rich makes $1.25 more
If you need 8 oz of chocolate chips to make 1.6 lbs of cookie dough, how many ounces of chocolate chips will you need to make 7 pounds of cookie dough?
n=32oz