Bell Ringer Solve the following proportions x/5 = 9/453/4 = x/4412/x = 48/60 On a scale of 1-10, 1 being I have learned nothing and 10 being I have learned.

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Presentation transcript:

Bell Ringer Solve the following proportions x/5 = 9/453/4 = x/4412/x = 48/60 On a scale of 1-10, 1 being I have learned nothing and 10 being I have learned a lot, rate how much you have learned this year and explain why.

Objective I can…… Set up and Solve proportions

Essential questions What does proportional mean? How can we use proportions in everyday life?

Review How do we solve proportions? 4=24 X42 Cross multiply divide

Practice 10 = x 7 = 49 X 70 7 = 28 X = 40

Using Proportions in everyday life Sales tax 10.25% How much tax do you pay on a pair of shoes that cost 59.99? X = sales tax X = x59.99= ÷ 100 = $6.15

Proportions sales tax Calculate the sales tax of each of the following items % Hat Jacket Jeans 44.50

PERCENT OFF If an hat cost but its 20% off, how much do you pay? X = x = ÷ 100 = $27.19

Percent off Computer cost You Get 15% off, how much do you pay? X = x399.99= ÷100=$

White board practice Regular price $64.99 You get 10% off, how much do you pay? $58.49

White board practice Regular price $ You get 25% off, how much do you pay? $89.99

White board practice Regular price $ You pay 10.25% sales tax, how much do you pay? $248.61