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Math_025_HW4[1]

# Math_025_HW4[1] - Math 025 Student HW4 ID Neatly show all...

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Math 025 Student: __________________________________________ HW4 ID: ______________________________________________ Neatly show all work in space provided. Work must corroborate answer to be eligible for any credit. 1 Solve the following problem algebraically. That is, set up an equation in one variable and solve it. Be sure to label clearly what the variable represents. A bricklayer can complete a wall in 7 days, whereas his assistant can do the same size wall in 3 days. Working together, how long will it take for them to complete the wall? 2 Solve the following problem algebraically. That is, set up an equation in one variable and solve it. Be sure to label clearly what the variable represents. Bill can ride 10 km in the same time that Jill can ride 15 km. If Jill rides 10 kmph faster than Bill, how fast does Bill ride? Page 1

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3 Solve the following problem algebraically. That is, set up a simultaneous set of equations and solve it. Be sure to label clearly what the variable represents. Two alloys, one 40% iron (X) and the other 60% iron (Y), are to be melted down to form another alloy. How much of each alloy should be melted down and mixed to form 72 tons of an alloy that is 55% iron?
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Math_025_HW4[1] - Math 025 Student HW4 ID Neatly show all...

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