Ratios
Write the ratio as a fraction in simplest form: 8 to 30
4/15
410 miles in 16 gallons
25.63 miles/gallon
Do each pair of ratios form a proportion? 2/3 and 6/9
Yes. (18 = 18)
n/12 = 6/18
n = 4
Julie was able to walk 16 miles through the park in 6 hours. How long will it take her to walk 24 miles through the park?
9 hours
Write the ratio as a fraction in simplest form: 54:27
2/1
1500 words in 25 minutes
60 words per minute
Do the ratios form proportions? 5/4 and 25/16
No (80;100)
c/28 = 5/7
c = 20
The ratio of vanilla pudding to chocolate pudding in a banana split pie is 4 to 3. Olivia has 64 oz of vanilla pudding. How much chocolate pudding does she need?
48 ounces.
Write the ratio as a fraction in simplest form: 66 inches to 72 inches
11/12
$1.12 for 8.2 ounces
$0.14 per ounce
Do the ratios form proportions? $8/20 lbs and $24/60 lbs
Yes (480 = 480)
2/x = 7/9
x = 2.57
If there are 1200 calories in an 8 oz piece of cheesecake, how many calories are in a 3 oz piece of cheesecake?
450 calories
There are a total of 300 students in 7th grade. If 180 of the students are girls, write the ratio of girls to boys in 8th grade.
3/2
3:2
Which is the better buy? $3.29 for a 16-ounce bag of candy $2.99 for a 12-ounce bag of candy
$3.99 for 16-ounce bag = $0.21 per ounce
Do the ratios form proportions? 5 ft/7 s and 25 ft/ 49 s
No
30/14 = k/1.54
k = 3.3
Annie bought 3 bags of special candy for $1.20. How much do 8 bags of candy cost?
$3.20
Write the ratio as a fraction in simplest form 30 seconds to 5 minutes
6/1
Ethan can buy 4 CDs for $71.96 at CD Express or 9 CDs for $134.55 at Music Rox. Which has the better unit cost? How much is he saving per CD?.
Music Rox has the better buy (14.95 per CD). Ethan saved $3.04 per CD.
Do the ratios form proportions? 21 mi/6 h and 14.3 mi/ 3 hr
No (63;85.8)
380/520 = 760/x
x = 1040
The moats separating the people from the animals are 5 m wide for bears and 4 m wide for leopards. If the bears' moats is 4 m deep, how deep should the leopards' moat be?
3.2 m for the leopards