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3 years ago

2. Solve the following equation:

Mathematics

2 answers:

mr_godi [17]3 years ago

5 0

Answer:

The first answer.

Step-by-step explanation:

Combine like terms. Subtract 8.7 from both sides.

y+8.17 (-8.7)= 14.8 (-8.7)

y=6.1

lisabon 2012 [21]3 years ago

4 0

Answer:

y = 6.1

Explanation:

y + 8.7 = 14.8

[ Subtract 8.7 from both sides ]

y + 8.7 − 8.7 = 14.8 − 8.7

y = 6.1

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Answer:

Part a) The variables are

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Part a) Define the variables in this situation

Let

x-----> the number of packages of Twinkies that were sold

y----> the number of boxes of juice that were sold

Part b) Write a system of equations that model the problem

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$x+y=79$ ------> equation A

$1.65x+1.36y=118.17$ ---> equation B

Part c) Use the linear combination method to find the solution to the system you wrote in part b

Multiply equation A by -1.65

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Adds equation C and equation B

$-1.65x-1.65y=-130.35\\1.65x+1.36y=118.17\\---------\\-1.65y+1.36y=-130.35+118.17\\-0.29y=-12.18\\y=42$

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$x+42=79$

$x=79-42=37$

Part d) Using a complete sentence, explain what the solution found in part c represents

The value of y represent the number of boxes of juice that were sold

$y=42\ boxes\ of\ juice$

The value of x represent the number of packages of Twinkies that were sold

$x=37\ packages\ of\ Twinkies$

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