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Valentin [98]
2 years ago
9

At Chick-Fil-A, two chicken sandwiches and three orders of fries cost $14.80. The cost for three chicken sandwiches and five ord

ers of fries is $23.40.
a. What are the equations that represent the situation?


b. How much does each sandwich cost?


c. How much does each order of fries cost?


Please provide an answer for each part and justify each step
Mathematics
1 answer:
kykrilka [37]2 years ago
7 0

Answer:

This is my question from the test. Please do your own work, Duvy.

Step-by-step explanation:

Good luck.

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Let each side=x
Use pythagorus
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Solve the system of linear equations by substitution.
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Answer: The solution is the ordered pair (1/2,  -3/4) so x = 1/2 and y = -3/4 pair up together. The two lines, when graphed, cross at this location.

note: 1/2 = 0.5 and -3/4 = -0.75; so the intersection point can be written as (0.5, -0.75)

===================================================

Explanation:

The second equation has y isolated. We can replace the y in the first equation with the expression 1/2x - 1

3x + 2y = 0

3x + 2( y ) = 0

3x + 2( 1/2x - 1) = 0 ... y is replaced with 1/2x-1

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4x - 2 = 0

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x = 2/4

x = 1/2

Use this x value to find the y value it pairs with

y = (1/2)*x - 1

y = (1/2)*(1/2) - 1 ... replace x with 1/2

y = 1/4 - 1

y = 1/4 - 4/4

y = (1-4)/4

y = -3/4

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There are 1,000 grams in 1 kilogram. Nate is mailing a package that has a mass of 8,000 grams.
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Nate's package is 8 kilograms. This is because, if there are 1,000 grams in 1 kilogram, 8,000/ 1,000= 8 Therefore, the mass of his package is 8 kilograms.

Have a Merry Christmas!

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4x + 12
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does this help at all?
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7393=73-273 is he expression shown below
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2 years ago
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