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Big Ideas Math Integrated I, 2016

BI

Big Ideas Math Integrated I, 2016 View details

3. Solving Inequalities Using Multiplication or Division

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Exercise 33 Page 72

What is the cost of producing p pennies?

More than 300 million pennies

Practice makes perfect

Let p be the number of pennies produced. To produce 1 penny, it costs $0.02. To find the cost of p pennies, we multiply the cost of each penny by the number of pennies. 0.02* p ⇒ 0.02pKnowing that the U.S. Mint pays more than $6 million in production, we can write and inequality for this situation. 0.02p > 6 000 000 Let's solve this inequality.

0.02p > 6 000 000

.LHS /0.02.=.RHS /0.02.

p > 6 000 000/0.02

Use a calculator

p > 300 000 000

More than 300 million pennies are produced.

Subchapter links

Communicate Your Answer p.67

Monitoring Progress p.68-70

Exercises p.71-72