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Unformatted text preview: motel where he works amounted to $2725. This included the 9% sales tax charged. Find the amount of the tax and the profit for the day. 8. How much pure dye must be added to 4 gallons of a 25% solution to increase the solution to 40%? (Pure Dye is 100%) 9. Last month, a bookstore sold graphing calculators for $87 and scientific calculators for $18. Total sales of these two calculators totaled $4,980, with 15 more graphing calculators sold than scientific calculators. How many of each type of calculator did the bookstore sell? 10. Jack has $800 invested in two accounts. One pays 5% interest per year and the other pays 10% interest per year. The amount of yearly interest is the same as he would get if the entire $800 was invested at 8.75%. How much money was invested in each account?...
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- Fall '11
- Math, Scientific calculator, J. Frewing Math