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Envision Math 2.0: Grade 7, Volume 1
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Envision Math 2.0: Grade 7, Volume 1 View details
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Exercise 1 Page 180

Set up a proportion.

8.368

Practice makes perfect
The ratio of a part of a whole equal to the ratio of a percent out of 100. part/whole=percent/100 ⇔ a/b=p/100 To find 0.8 % of 1046, we substitute p= 0.8 and b= 1046 into the formula and solve for a using the Properties of Equality.
a/b=p/100
SubstituteII

p= 0.8, b= 1046

a/1046=0.8/100
â–Ľ
Solve for b
MultEqn

LHS * 1046=RHS* 1046

a/1046* 1046 = 0.8/100* 1046
FracMultDenomToNumber

a/1046* 1046 = a

a = 0.8/100* 1046
MoveRightFacToNum

a/c* b = a* b/c

a = 0.8 * 1046/100
Multiply

Multiply

a = 836.8/100
CalcQuot

Calculate quotient

a = 8.368
We found that 8.368 is 0.8 % of 1046.
Subchapter links expand_more
arrow_right Topic Essential Question p.179
1
arrow_right Vocabulary Review p.179
1
arrow_right Use Vocabulary in Writing p.179
1
arrow_right 1 Analyze Percent of Numbers p.180
1
Analyze Percent of Numbers 2 (Page 180)
3
arrow_right 2 Connect Percent and Proportion p.180
Connect Percent and Proportion 1 (Page 180)
2
3
arrow_right 3 Represent and Use the Percent Equation p.181
Represent and Use the Percent Equation 1 (Page 181)
Represent and Use the Percent Equation 2 (Page 181)
arrow_right 4 Solve Percent Change and Percent Error Problems p.181
1
2
arrow_right 5 Solve Markup and Markdown Problems p.182
1
2
arrow_right 6 Solve Simple Interest Problems p.182
1
2