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Wednesday, December 14, 2011

Dom's Percent Textbook page 149 (4,5,6)

Question 4.

Chris Purchased the following items:
- 2 binders at 4.99$ each
- 1 math set for 3.99$
- a backpack for 19.99$

Find the total cost including 5% GST and 7% PST.

4.99$ x 2= $ 9.98 9.98+3.99+19.99= 33.96
5+7=12 12/100= 0.12 0.12x 33.96= 4.08
4.8+33.96= 38.04

Question 5.

Ravi purchased 3 DvD's for 19.99 each. Find the total cost for the DvD's including 5% GST and 6% PST

3x19.99=59.97

5+6= 11 11/100= 0.11
0.11x59.97=$6.60 6.60+59.97= $66.57

Question 6.

A store discounted items by 50% off theoriginal price one week. The followingweek an additional 10% was taken off thealready reduced price. The regular priceof a CD player was $85.00. What is thereduced price in the second week?

50/100=0.5 0.5x 85.00= 42.5 10/100=0.1
85.00/2= 42.5 0.1x 42.50= 4.25

42.5-4.25=
38.25

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