Review 5-1 to 5-3 SDSU

Understand Rates and Unit Rates

A rate is a ratio that relates two quantities with different units. A unit rate relates a quantity to 1 unit of another quantity. You can use what you know about dividing fractions to write a ratio of fractions as a unit rate

Write the statement as a unit rate.

1.) 78 miles on 3 gallons

Write the statement as a unit rate.

1.) 18 laps in 6 minutes

Write the statement as a unit rate.

1.) 48 sandwiches for 16 people

Which is a better value? $5.00 for 4 mangoes OR $6.00 for 5 mangoes

Which is a better value? 3 laps in 5 minutes OR 4 laps in 7 minutes

A florist uses 5 red roses for every 2 white roses in her bouquet.

1.) Write the ratio of white roses to red roses in three different ways.

A florist uses 5 red roses for every 2 white roses in her bouquet.

2.) Write the ratio of red roses to the total number of flowers in three different ways.

 $\frac{5\ red\ roses}{2\ white\ roses}=\frac{10\ red\ roses}{?\ white\ roses}$  

A florist uses 5 red roses for every 2 white roses in her bouquet.


2.)If the florist uses 10 red roses in bouquet, how many white roses does she have?

 $\frac{5\ red\ roses}{2\ white\ roses}=\frac{?\ red\ roses}{10\ white\ roses}$  

A florist uses 5 red roses for every 2 white roses in her bouquet.


3.)If the florist uses 10 white  roses in bouquet, how many red roses does she have?

 $\frac{5}{12}$  (Find two ratios equivalent to the given ratio)

 $14:32$  (Find two ratios equivalent to the given ratio)

For every 4 bagels sold at a bakery, 7 muffins are sold. How many muffins are sold when the bakery sells 24 bagels? Complete the table.

The school soccer team buys 3 soccer balls for every 2 players. The school volleyball teams buys 7 volleyballs for every 5 players. Which team buys more balls per player and why?

Jenna walks 12 miles in 5 days. Alex walks 7 miles in 3 days. Who walks more miles in one day and why?