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IA2.1-2.3 - motel where he works amounted to \$2725 This...

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J. Frewing Name:_________________ Math 35 Date :_________________ In Class Activity: 2.1-2.3 1. Solve each equation: a. - = - + 4( 2) 6 2( 3) x x b. - - = - 2 3 3 7 7 3 r r 2. Determine if each equation is a conditional, identity or contradiction. Give the solutions set. a. - + - = - - + 12 2 11 2(5 3) 4 x x x d. + - = + + 4(2 7) 25 2 3(2 1) y y y 3. If the temperature in Mexico is 32 O C then find the corresponding Fahrenheit temperature. 4. The radius of a circle is 2.5 in. What is the diameter? What is the circumference? 5. Of all 59 students enrolled in our Math 35 class, 29 of them emailed me from their rcc email account. What % of the class emailed me?

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J. Frewing Name:_________________ Math 35 Date :_________________ 6. A mixture contains 35% acid. If the mixture contains a total of 40L, how many liters of pure acid are in the mixture? How many liters of pure water are in the mixture? 7. At the end of the day, Erich Bergen found that the total cash register receipts at the
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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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