a. The expression to show how much Winona and Takoda would pay in total if they buy their mother the set of power tools would be: d + 2.
b. The expression 0.90(d - 5) refers to the present of jewelry.
c. Calculating the Total Paid column for each of the possible presents using d = $50:
- Power tools: d + 2 = $50 + $2 = $52.
- Water skis: d + 15 - (0.25(d + 15)) + 2 = $50 + $15 - (0.25($50 + $15)) + $2 = $67 - $16.25 + $2 = $52.75.
- Jewelry: d - 5 - (0.10(d - 5)) + 2 = $50 - $5 - (0.10($50 - $5)) + $2 = $45 - $4.50 + $2 = $42.50.
The most economical or cheapest present would be the set of power tools, with a total paid of $52.
Winona and Takoda are shopping for a present for their mother.
The chart shows several possible presents. There is no sales tax in the state where they live.
Present Cost ($) Discount (%) Total Paid
Power tools d 15% (+2)
Water skis d + 15 25% (+2)
Jewelry d – 5 10% (+2)
a. Write two expressions in terms of d to show how much Winona and Takoda would pay in total if they buy their mother the set of power tools.
+2
b. What present does the expression 0.90(d – 5) refer to?
+1
c. Use the value d=$50. Calculate the Total Paid (+6pts see above) Column of each of the possible presents for the value of $50. Then star or circle the most economical or cheapest. (+1)
give the real answer
1 answer
1 answer