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Exam 5: Solving for the Unknown: a How-To Approach for Solving Equations

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Question 1

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Variables and constants are terms of mathematical expressions.

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Question 2

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Mick and Mack went to a supermarket and bought boxes of soap detergent. Mack could buy only four boxes, which was as much as Mick. How many boxes did Mick buy? $\frac {\text {1 }} { \text {5 } }$

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20 boxes

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Jane sells 8 times as many Volvos as Melissa. If the difference in their sales is 35, how many cars did Jane sell?

Whatever you do to one side of an equation, you must do to the other.

C + 100 = 55; C equals:

Al Resse and Marci Rey received a total of $210,000 from a deceased relative's estate. They decided to put away $50,000 in a trust for their child and divide the remainder into 1/4 for Marci and for 3/4 Al. How much will Al receive?

A furniture company produces 4 times as many beds on shift 2 as on shift 1. If a total of 1,000 beds were produced, how many were produced on each shift? A. Number produced on Shift 1. B. Number produced on Shift 2.

Erasers cost $5 per carton, and pencils cost $7 per carton. If an order comes in for a total of 15 cartons for $85, what number of cartons of each was bought?

Solve the following: 1,000 (X ? 2) = 75,000

Cecil budgets of his weekly salary for comic books. Cecil's weekly comic book bill is $30.00. What is his weekly salary? $\frac {\text { 1 }} { \text { 6} }$

Solve for the unknown, showing all work. (If necessary, round to the nearest hundredth.) 7 (A - 4)= 21

4C stands for twice Cathy's age.

Lane is 10 times Mel's age. If the difference in their age is 27, how old is Mel?

20(C - 9)means the 20 is multiplied only times the C to clear the parentheses.

Match the term with its definition. -Equation

B/8 = 90; B equals:

Match the term with its definition. -Constant

Marvin Co. sells pens ($6) and flashlights ($10) . If total sales were $624 and customers bought 7 times as many pens as flashlights, what would be the number of pens sold?

Rick and Ranger sell Toyotas for Tom's Auto. Over the past year they sold 360 cars. Assuming Rick sells 5 times as many as Ranger, how many Toyotas did Ranger sell?

Match the term with its definition. -2