Ratios
Which is not a way to write a ratio?
a. 6 to 7 b. 6:7
c. 6/7 d. 6-7
D
Are the ratios 4:3 and 9:12 equivalent? Why or why not?
No
What is 3.82 rounded to the nearest whole number?
4
A grocery store sells a bag of 5 lemons for $2.00. What is the unit cost of each lemon in the bag?
$.40
Chase is comparing music subscription prices. A 12-month subscription with All Ears costs $91.80 and a 3-month subscription with Press Play costs $19.35. Which service costs less per month?
12 month - $7.65
3 month - 6.45 (lower cost)
At Friendly Middle School, there are 4 students for every teacher. What is the ratio of students to teachers?
4/1
Are the ratios 6:18 and 1:3 equivalent? Why or why not?
Yes
What is 1.64 rounded to the nearest tenth?
1.6
16 minutes for 4 songs = _____
minutes per song
4
Michael, who really likes to have a bag of chips with his lunch, is comparing chip prices at the store. He can buy a 10-pack of Double Cheese Crisps for $7.80 or a 15-pack of Cheddar Skins for $11.85. Which brand costs less per bag?
10 pack - $.78 (cheaper)
15 pack - $.79
A bakery made 9 muffins that contained nuts and 41 muffins that did not contain nuts. What is the ratio of the number of muffins without nuts to the number of muffins with nuts?
41/9
What is the equivalent ratio in simplest terms for 16:12?
4/3
Round 32.697 to the nearest tenth.
32.7
An 8-meter piece of cord costs $7.04. What is the unit price?
$.88
Colin loves to eat tuna salad for lunch. His mom is always looking for a bargain on 12-ounce cans of tuna. Today, his local grocery store is offering 4 cans of Sea Star tuna for $3.28 and 2 cans of Ocean's Best tuna for $1.88. Which brand is the better deal?
Sea Star - $.82 (better deal)
Ocean's Best - $.94
Barbara has 7 hats, 3 jackets and 5 scarves. What is the ratio of jackets to the total number of items?
3/15
The ratio of brown to blue eyes in a group of students is 1 to 3. What equivalent ratio of students fits?
a. 5 brown to 7 blue
b. 3 brown to 9 blue
c. 4 brown to 8 blue
d. 3 brown to 12 blue
B
Round 141.939 to the nearest hundredth.
141.94
Steve drives 78 miles on 3 gallons of gas. Find the miles per gallon.
26 mpg
Dirk ran out of paper towels. At the store, he finds a 2-pack of Quick Clean paper towels for $1.74 and a 4-pack of Soft 'n Strong paper towels for $3.60. How much does each paper towel cost? Which brand is the better buy?
Quick Clean - $.87 (better buy)
Soft & Strong - $.90
In a classroom, 12 out of the 17 students are girls. The ratio 5:12 would represent?
Boys/Girls
There are 30 boys and 50 girls in a room. This means there are ____ boys for every _____ girls.
There is more than 1 correct answer.
3 boys for every 5 girls
6 boys for every 10 girls
15 boys for every 25 girls
Round 9.998 the the nearest whole number.
10
Amy drove to her mother's house which is 204 miles away. If it took her 3 hours, what was her average speed?
68 mph
Olivia's mom is ordering cupcakes for Olivia's birthday. A pack of 6 cupcakes from Baked Fresh costs $18. A pack of 12 cupcakes from Milk 'n' Creme Bakery costs $37.20. How much more does Milk 'n' Creme Bakery charge per cupcake?
Baked Fresh - $3
Milk & Creme - $3.10 ($.10 more)