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Core Connections: Course 2

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Core Connections: Course 2 View details

3. Section 5.3

Finish the assignment

Continue to next subchapter

Exercise 101 Page 289

How do you calculate 13 of $80?

$53.3

Practice makes perfect

In order to find the discounted price of the purse, we need to subtract the discount in dollars from the original price. Original price- Discount= New priceFirst, we have to find the cost subtracted by the discount, which is 13 of $80. We can find the value of the discount by multiplying the original price by the discount rate.

1/3* $80

MoveRightFacToNumOne

1/b* a = a/b

$ 80/3

Calculate quotient

$ 26.6

Finally, by subtracting $2.48 from $45, we get the new price including the discount. $80- $26.6= $ 53.3

Subchapter links

5.3.1 Describing Relationships Between Quantities p.288-289

5.3.2 Solving a Word Problem p.292

5.3.3 Strategies for Using the 5-D Process p.296-297

5.3.4 Using Variables to Represent Quantities in Word Problems p.302-303

5.3.5 More Word Problem Solving p.307