Sargent Park 8-73 Math

Friday, January 13, 2006

Answers

"Lucky 13 Assignment"

Question 1
First write a simple sentence answer. Then write a word ratio. Check your answer.

Question 2
Original area = 3 x 5 = 15
3 x 3 = 9
5 x 3 = 15
15 x 9 = 135
135 divided by 15 = 9
The numbers must be multiplied by 9.

Question 3

3 + 4 = 7

35 divided by 7 = 5
5 x 3 = 15 boys
5 x 4 = 20 girls
There are 5 more girls than boys in the class.

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"Percent Problems"

8 x 4 = 32
20% of 32 = 6.4
32 - 6.4 = 25.60
Sami's parking cost $26.60.

5 x 5 x 5 = 125
62 unit squares shaded in all
62 divided by 125 = .496 x 100 = 49.6 rounded off = 50%

50% of the squares in the five grids are shaded.

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The discount is what you save (removed from actual price) while sale price is what you have to pay after subtracting the discount from the regular price.

100% = 70 (divide in half)
50% = 35

100% = 80
10% = 8 (multiply by 3)
30% = 24
5% = 4
35% = 28




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