Question

Winona and takona 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.

Presents cost
—---------
Power tools d dollars
Water skis d+15 dollars
Jewelry d-15 dollars

A.Write two expressions in term of d to show how much winona and takona would pay in total if they bought their mother the set of power tools

B.what does the expression 0.90(d-5)refer to. How do you know?How else could this expression be written?

C. choose a value for d that is greater than 25$ and less than 100$ calculator the total cost of each of the possible presents for the value you choose then write a
Short paragraph telling winona and takona which present they should buy
do all

Answer 1

A. Winona would pay d dollars for the power tool set, so her expression would be d. Takona would also pay d dollars for the power tool set, so her expression would also be d. Therefore, the total amount they would pay is 2d.

B. The expression 0.90(d-5) refers to a discount of 10% off the original price (d-5) of an item. This can be determined because the expression is multiplied by 0.90, which is equivalent to multiplying by (1-0.10). The expression could also be written as 0.10(d-5) or 0.1d - 0.5.

C. Let's choose d = 50$.
For the power tools, Winona and Takona would each pay 50$.
For the water skis, Winona would pay 50$ + 15$ = 65$ and Takona would pay 50$ + 15$ = 65$.
For the jewelry, Winona would pay 50$ - 15$ = 35$ and Takona would pay 50$ - 15$ = 35$.
Based on the given prices, the power tools would be the most cost-effective present for both Winona and Takona. Therefore, they should buy the power tool set for their mother.