Ratios (SIMPLIFY)
There are 24 dogs to 16 cats. What is the ratio of dogs to cats?
3 to 2
If Sofia drives 100 miles in 2 hours, what is her rate (speed per hour).
What is 50 miles per hour.
3 bacon, egg and cheese sandwiches for $11
OR
7 bacon, egg and cheese sandwiches for $33
3 for $11
Determine if each pair of ratios or rates is equivalent. $3 for 6 bagels; $9 for 24 bagels
the rates are not equivalent.
A fraction in which the numerator is a fraction, the denominator is a fraction, or both the numerator and the denominator are fractions.
Complex Fraction
There are 21 red skittles and 7 green skittles, what is their ratio of red to green? (Simplify your answer)
3 to 1
Omar bought a package of three T-shirts for $18. What is the unit price per T-shirt?
$6
5 cans of coke for $4
6 cans of coke for $5
5 for $4
Determine if each pair of ratios or rates is equivalent. 96 words typed in 3 minutes; 160 words typed in 5 minutes.
Yes; since the unit rates are the same, 32 words/1 minute, the rates are equivalent.
Two ratios that express the same comparison. Multiplying both numbers in the ratio a:b by a nonzero number n results in the equivalent ratio na:nb
Equivalent Ratios
The ratio of crickets to meal worms is 1 to 3 at the pet store. If there are 20 crickets in the pet store today, how many mealworms are there?
60
If 6 bags of Takis cost $12, then how much does 1 cost?
What is $2
5 burgers for $25
OR
3 burgers for $18
5 for $25
Determine if each pair of ratios or rates is equivalent. 288 miles on 12 gallons of fuel; 240 miles on 10 gallons of fuel.
Yes; since the ratios share the same unit rate
A ratio that tells the number of units of one quantity for 1 unit of another quantity. Often expressed using the word per, such as 5 miles per hour or 2 cups per serving
Rate
In Andy’s math class, there are 12 boys
and 15 girls. Which of the following is the
ratio of girls to boys in Andy's math
class?
5 to 4
Anthony bought a box of 5 bells for $5. What is the price per bell?
$1
3 months subscription for $20
OR
12 month subscription for $80
They are equal
Determine if each pair of ratios or rates is equivalent. 16 out of 28 students own pets; 240 out of 560 students own pets
No the ratios are not equivalent.
A way to compare two quantities when there are a units of one quantity for every b units of the other quantity. You can write in symbols as a:b and in words as a to b
Ratio
What is NOT one way to find an equivalent ratio
A) adding B) subtracting C) multiplying D) dividing
Select all that apply
What are A or B.
Ashley bought a 6 pounds of strawberries for a cake. It cost her $30. What is the unit price for one pound?
$5
12 packs of gum for $24
OR
16 packs of gum for $28
16 for $28
Determine if each pair of ratios or rates is equivalent. 8 pairs of socks for $12; 3 pairs of socks for $6
No the ratios are not equivalent.
The numerical part of a rate. For the ratio a:b, this is the quotient a/b.
Unit Rate