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Glencoe Math: Course 2, Volume 1

GM

Glencoe Math: Course 2, Volume 1 View details

1. Percent of a Number

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Exercise 1 Page 106

To write the percent as a fraction, write the number part as a numerator over 100.

4

Practice makes perfect

We are asked to calculate 8 % of 50. Let's do this by writing the percent as a fraction and then multiplying it by 50. Recall that we can write the percent as a fraction by writing the number part as a numerator over 100. 8 % = 8/100 Notice that we can also reduce the fraction that we got.

8/100

a/b=.a /4./.b /4.

8/4/100/4

Calculate quotient

2/25

Now we will find 225 of 50. 2/25of 50 = 2/25* 50 To do so, we can write 50 as 501 and perform the multiplication. Let's do it!

2/25* 50

a=a/1

2/25* 50/1

Multiply fractions

2* 50/25* 1

Multiply

100/25* 1

Identity Property of Multiplication

100/25

Calculate quotient

4

We got that 8 % of 50 is equal to 4.

Subchapter links

Guided Practice p.106

Independent Practice p.107-108

H.O.T. Problems p.108

Standardized Test Practice p.108-110

Extra Practice p.109

Common Core Review p.110