PERCENT INCREASES. NS 1.4 Calculate given percentages of quantities and solve problems involving discounts at sales, interests earned, and tips. Today’s.

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Presentation transcript:

PERCENT INCREASES

NS 1.4 Calculate given percentages of quantities and solve problems involving discounts at sales, interests earned, and tips. Today’s objective: use our previous topics of decimal multiplication, converting percents to decimals, and percents of numbers to calculate how much items will cost after tax/tip/interest are added. Learning target: Answer at least 3 of the 4 percent increase questions correctly on the exit ticket.

What are real-life situations that involve adding a percent of a number? Paying sales tax, leaving a tip, and earning interest.

There is 9% sales tax on a $12 item. How much is the sales tax? How much do I pay total? 9% = 0.09 $12 ×.09 $108 $ $1.08 $13.08.

The bill at a restaurant is $ How much is a 15% tip? 15% = 0.15 $26.20 × $ = $3.93

How much did I pay total? ($26.20 bill, $3.93 tip) $ $3.93 $30.13

I deposit $860 into a bank that gives 3% interest. How much money do I have total? 3% = 0.03 $860 ×.03 $25.80 $ $25.80 $885.80