m9 ratio/proportions
for every 2 boys there are 5 girls
Ratio--can be a fraction------relationship between numbers
5
2
or 2:5
or 0.4
girls
boys
boys=
in math class, the ratio for boys to girls
is 5 boys to 8 girls.   5:8

how many boys in the class if there are 24 girls?
set up your proportion
set-up

boys
girls
set up your proportion
Sue can read 100 text in an hour.how many can she read in 3 minutes?
text
time
cokes
calories
2 cokes have 280 calorieshow many calories do 8 cokes have?
miles
gallon
you can travel 520 miles on 16 gallons of gas.
how many miles per gallon do you get?
a 48 oz bag of chips cost $3.25.how much does 1 oz of chips cost?
.67 cents
.07 cents
.06 cents
14.77 cents
you drive 280 miles in 5 hours.how fast did you drive to get there?in other words, what is you mph?
mph
if 3 candy bars has 357 calories, thenhow many calories does 1 candy bar have?
if 3 candy bars has 357 calories, thenhow many calories does 12 candy bars have?
you can travel 410 miles on 22 gallons of gas.how many miles per gallon do you get?
miles per gallon
you drive 425 miles in 8 hours.how fast did you drive to get there?in other words, what is you mph?
mph
set up your proportion
Jack can send 225 text in an hour.how many can he text in 15minutes?
text
time
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