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zalisa [80]
2 years ago
8

Shelby, Allen, and Denise printed their digital photos. Each requested the same size prints. Shelby paid $2.70 for 5 prints. All

en paid $3.24 for 11 prints. Denise paid $4.05 for 20 prints
Mathematics
2 answers:
Pepsi [2]2 years ago
8 0

Answer:

wrote the ordered pairs (5, 2.70),  (11, 3.24), and (20, 4.05)

used two of the ordered pairs to find the slope

wrote the point-slope form for a linear equation

substituted the slope and the coordinates of one of the points to write the equation of the line

Step-by-step explanation:

tekilochka [14]2 years ago
4 0
Person:    Number of prints      Total Cost
Shelby             5                               2.70
Allen               11                              3.24
Denise            20                             4.05

To solve for the variable cost:
11 - 5 = 6
3.24 - 2.70 = 0.54
0.54 / 6 = 0.09 per print

To solve for the fixed cost
0.09 x 5 = 0.45
2.70 - 0.45 = 2.25 

y = 2.25 + 0.09x

y = 2.25 + 0.09(5) = 2.25 + 0.45 = 2.70
y = 2.25 + 0.09(11) = 2.25 + 0.99 = 3.24
y = 2.25 + 0.09(20) = 2.25 + 1.8 = 4.05
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David received his allowance on Sunday. He spends 1/4 of his allowance on Monday and 2/3 of the remainder on Tuesday. What part
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Alex777 [14]

Answer:

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Step-by-step explanation:

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2 years ago
Terrence buys a new car for $20,000. The value of the car depreciates by 15% each year. If f(x) represents the value of the car
Lerok [7]

Answer

The function represents the car’s value after x years.

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Reason

As given

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Thus

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The value of car after x years = 20,000 (1 -0.15)x

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4 0
2 years ago
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const2013 [10]

Answer:

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Step-by-step explanation:

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4x^2y^3+2xy^2-2y

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-7x^2y^3+6xy^2-2y

The given expression

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7 0
2 years ago
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