Enter Title

ratio statements

100

how do I write the following in ratio notation (using the : symbol)

"for every 3 squares, there are 5 circles"

3:5

"three to five"

200

if a pie recipe uses grapes and cherries in a 2:3 ratio, how can I describe this with a sentence starting with "for every..."

for every 2 grapes, there are 3 cherries.

300

if a forest has 3 oak trees for every 7 elm trees, what is the ratio of elm trees to oak trees? what about elm trees to total trees (if there's only oak and elm trees)?

elm to oak is 7:3
"seven to three"

for every 7 elm trees, there are 3 oak trees
__________
elm to total is 7:10

for every 7 elm trees, there are 10 trees in total

400

see if you can come up with a ratio (or an approximate ratio) for the time you spend at lunch, to the total time you spend at school each day.

1/2 : 7 (one half hour to seven total hours)

30 : 420 (30 minutes to 420 minutes)

1 : 14 (simplified ratio)

equivalent ratios

100

what is a simpler version of the ratio 5:15?

1:3

5 ÷ 5 = 1

15 ÷ 5 = 3

200

Dana made 20 pink cupcakes and 5 green cupcakes. What is the ratio of pink to green cupcakes?  

a. 20:1
b. 4:1
c. 5:20
d. 1/5

b. 4:1

20 and 5 can both be divided by 5.

300

Mr. Kevin can make 6 baskets in 10 seconds. How many baskets can he make in a minute?

36

a minute is 60 seconds, which is 10 seconds 6 times. 6 baskets 6 times is the same as 6 x 6.

400

(table)

Which two people's running speeds are the same?

Angel runs 16,000 feet in 60 minutes. Both of these numbers can be divided by 4 to show that this is the same as 4,000 feet in 15 minutes, which is Toni's running pace too.

unit rates

100

Coach Alicia is doing pushups. She does 45 pushups in 3 minutes. How many does she do in one minute?

45 pushups / 3 minutes = 15 pushups per 1 minute

200

Costco sells 20 bags of Cheetos for $15. How much is one bag of Cheetos?

$15 for 20 bags = $15/20 for one bag

$15/20 is the same as $3/4 or $0.75

300

(table)

who was eating cookies the fastest?

Raul: 6/4 = 3/2 = 1.5 per second

Jenni: 14/10 = 7/5 = 1.4 per second
Jaiden: 16/12 = 4/3 = 1.33 per second
Neveah: 6/5 = 1.2 per second

400

here are some taco prices - which place sells the cheapest tacos?

Albertos: 10 tacos for $30

Tacos la Playa: 6 tacos for $21

Cameon de Tacos: 8 tacos for $26

Albertos: $30 / 10 tacos = $3 for 1 taco

Tacos la Playa: $21 / 6 tacos = $3.50 for 1 taco

Cameon de Tacos: $26 / 8 tacos = $3.25 for 1 taco