Applying Systems Of Linear Equations Worksheet With Answers

Applying Systems Of Linear Equations Worksheet With Answers - Lesson 6-5 Page 3

6-5 Applying Systems of Linear Equations

The solution is

12. FINANCIAL LITERACY For a Future Teachers of America fundraiser, Denzell sold food as shown in the table.

He sold 11 more subs than pizzas and earned a total of $233. Write and solve a system of equations to represent this

situation. Then describe what the solution means.

SOLUTION:

Let s represent the number of subs sold and p represent the number of pizzas sold.

3s + 5p = 233; s = p + 11

Solve through substitution.

Now, substitute 25 for p in either equation to find the value of s.

Denzell sold 25 pizzas and 36 subs.

15. CCSS MODELING The break-even point is the point at which income equals expenses. Ridgemont High School

is paying $13,200 for the writing and research of their yearbook plus a printing fee of $25 per book. If they sell the

books for $40 each, how many will they have to sell to break even? Explain.

SOLUTION:

Let b represent the number of books they have to sell and p represent the break-even point.

13,200 + 25b = p ; 40b = p

Solve through substitution.

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Now, substitute 880 for b in either equation to find the value of p .

Applying Systems Of Linear Equations Worksheet With Answers - Lesson 6-5 Page 3