copyright © 2010 pearson education, inc. all rights reserved sec 1.7 - 1 chapter 1 introduction to...
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Copyright © 2010 Pearson Education, Inc. All rights reserved Sec 1.7 - 1
Chapter 1Introduction to Algebra:
Integers
1.7 Dividing Integers
Copyright © 2010 Pearson Education, Inc. All rights reserved. Sec 1.7 - 2
Objective 1: Divide integers.
The answer to a division problem is called the quotient.
Copyright © 2010 Pearson Education, Inc. All rights reserved. Sec 1.7 - 3
Objective 1: Divide integers.
Copyright © 2010 Pearson Education, Inc. All rights reserved. Sec 1.7 - 4
Objective 1: Divide integers.
Divide the integers.
(a)
(b)
Example
Different signs,quotient is negative. 4
5
20
5
20
4
24
Same sign,quotient is positive. 6
4
24
Copyright © 2010 Pearson Education, Inc. All rights reserved. Sec 1.7 - 5
Objective 3: Combine multiplying and dividing of integers.
Simplify.
6(–10) ÷ (–3 • 2)
Example
Do operations inside parentheses first.Start at the left and perform operations from left to right.
Copyright © 2010 Pearson Education, Inc. All rights reserved. Sec 1.7 - 6
Objective 3: Combine multiplying and dividing of integers.
Simplify.
–24 ÷ –2(4) ÷ –6
Example
No operations inside parentheses. Start at the left and perform operations from left to right.
Copyright © 2010 Pearson Education, Inc. All rights reserved. Sec 1.7 - 7
Objective 5: Interpret remainders in division application problems.
The math department a a college has $360 in its budget to buy calculators. If the calculators cost $25 each, how many can be purchased? How much money will be left over?
Example
Copyright © 2010 Pearson Education, Inc. All rights reserved. Sec 1.7 - 8
Objective 5: Interpret remainders in division application problems.
Luke needs to rent tents for 135 Scouts going on a camping trip. Each tent sleeps 6 people. How many tents should he rent?
Example
Luke will need to rent 23 tents.