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**Solve Equations Word Problems**

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**A school has $6500 budgeted for textbooks**

A school has $6500 budgeted for textbooks. The principal wants to buy 120 new geography textbooks for $39.95 each. How much money will be left in the textbook budget after the purchase?

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Use the formula I = prt Find the interest after two years at 5% with a principal deposit of $1000.

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Use I = prt How much would need to be deposited to gain an interest of $75 at a rate of 3% over five years?

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Money Mr. Thomsen plans to purchase a used car priced at $ He will receive a 15% employee discount and then will have to pay a 5.5% sales tax. What will be the final price of the car?

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Average Bill Gutierrez drove at a speed of 65mph for two hours. He then drove for 1.5 hours at a speed of 45mph. What was his average speed?

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Mixtures Chocolate chip cookies sell for $6.95 per pound and white chocolate cookies for $5.95 per pound. How many pounds of chocolate chip cookies should be mixed with 4 pounds of white chocolate cookies to obtain a mixture that sells for $6.75 per pound.

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D=RT Two cyclists begin traveling in opposite directions on a circular bike trail that is 5 miles long. One cyclist travels 12 miles per hour, and the other travels 18 miles per hour. How long will it be before they meet?

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#13 on homework In Mrs. Martinez’s science class, a test is worth three times as much as a quiz. If a student has test grades of 85 and 92 and quiz grades of 82, 75, and 95, what is the student’s average grade?

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Number 14 At Westbridge High School, a student’s grade point average is based on the student’s grade and the classs credit rating. Brittany’s grades for this quarter are shown. Find Brittany’s GPA if a grade of A equals 4 and a B equals 3. Class Credit Rating Grade Algebra 1 A Science English B Spanish Music 1/2

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Number 15-18 In 2005, the international price of gold was $432 per ounce, and the international price of silver was $7.35 per ounce. Suppose gold and silver were mixed to obtain 15 ounces of an alloy worth $ per ounce. 15. copy and complete the table below. # of ounces $ per ounce value Gold g Silver 15-g Alloy

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**16. Write an equation to represent the problem.**

How much gold was used in the alloy? How much silver was used in the alloy?

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Number 19 The Madison High School marching band sold solid-color gift wrap for $4 per roll and print gift wrap for $6 per roll. The total number of rolls sold was 480, and the amount of money collected was $ How many rolls of each kind of gift wrap were sold?

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Number 20-23 Party Supplies Inc. sells metallic balloons for $2 each and helium balloons for $3.50 per dozen. Yesterday, they sold 36 more metallic balloons than dozens of helium balloons. The total sales for both types of balloons were $ Copy and complete the table representing the problem. Number Price Total Price Metallic Dozens of Helium

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**21. Write an equation to represent the problem.**

How many metallic balloons were sold? How many dozen helium balloons were sold?

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Number 24 Lakeisha spent $4.57 on color copies and black-and-white copies for her project. She made 7 more black-and-white copies than color copies. How many color copies did she make? Type of copy Cost per page color $0.44 Black-and-white $0.07

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2.7 More about Problem Solving1 Use percent in problems involving rates. Percents are ratios where the second number is always 100. For example, 50% represents.

2.7 More about Problem Solving1 Use percent in problems involving rates. Percents are ratios where the second number is always 100. For example, 50% represents.

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