## Wednesday, December 14, 2011

### Priya's Percent Scribe Post

Page's 148-151

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.

This is the calculation I did to figure out the final price with taxes included:

4.99 x 2 = 9.98

9.98 + 3.99 + 19.99 = 33.96

33.96 x 0.12 ( add the GST and PST- which makes 0.12 ) = 4.07 ( tax money )

4.07 + 33.96 = \$38.03 ( final price, taxes included too.)

13.) A ski jacket has been marked down on three occasions, first 20% off, then 25% off the new price, and finally 50% off the previous price. What is the overall percent saved?

This is the calculation I did to find the overall percent saved:

For example, if the jacket was \$100,

100 x 20% ( 0.20 ) = 20

100 - 20 = 80

80 x 25% ( 0.25) = 20

80 - 20 = 60

60 x 50% ( 0.50) = 30

60 - 30 = \$30 ( final price )

\$100 - \$30 = \$70

\$70 divided by 100 = 0.7 ( 70%) ( savings )

12.) a.) What is 115% of 230?

115% ( 1.15 ) x 230 = 264.50