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Algebra 1 Section 3.8 Apply rates, proportions and percents to solve problems Cost of beans$1.20$1.54$1.80 Size of can10 oz14 oz20 oz Find the unit rate.

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Presentation on theme: "Algebra 1 Section 3.8 Apply rates, proportions and percents to solve problems Cost of beans$1.20$1.54$1.80 Size of can10 oz14 oz20 oz Find the unit rate."— Presentation transcript:

1 Algebra 1 Section 3.8 Apply rates, proportions and percents to solve problems Cost of beans$1.20$1.54$1.80 Size of can10 oz14 oz20 oz Find the unit rate for each can of beans. Which size of can gives the best value?

2 Find the unit rate. Estimate the number of gallons needed to drive 500 miles. Number of miles400115192 Number of gallons 16 5 8 To estimate the number of gallons used, average the unit rates. Number of miles = average unit rate Number of gallons

3 The exchange rate for US – Canada currency is $1.40 Canadian for $1.00 American. If you have $210 Canadian, how much is it worth in US Dollars? Canadian $ US $

4 On a map, 10 cm equals 50 miles. How many miles is represented by 37 cm? _cm__ miles

5 To find the percent a number represents out of the total use the formula: In a survey of 80 students, the following said their favorite class was… Literature20 Science25 Math35 Part x 100% = percent total Find the percent that liked each subject best.

6 500 people were asked how they got to school. How many used each type of transportation? Part x 100% = percent total

7 Assignment Page 183 Problems 13 – 20 all, 24 – 40 even


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