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77julia77 [94]
3 years ago
14

A store pays $399 for a waterheater. The store marks up the price by 42% . What is the amount of the mark-up?

Mathematics
1 answer:
Lelu [443]3 years ago
3 0

Answer:

Step-by-step explanation:

399*42%= 167.58 the mark up amount

399+167.50=566.50 total

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F(x)=(x-2)(x+4) what is the y-intercept and x-intercept
GarryVolchara [31]

Answer:

x-int=-8, y-int=2,-4

Step-by-step explanation:

for the x-int

you set x to 0 then solve the equation to get -8

for the y-int

you set y(or in this case f(x)) to 0 then solve. You solve this by spilting this into 2 linear equations; x-2=0 and x+4=0, then you solve them both to get the two y-intercepts, 2 and -4

6 0
3 years ago
In your own words, describe how to graph the linear equation y = -1/5x + 3. Step by step
Gemiola [76]

Answer:

Steps given below and graph is attached.

Step-by-step explanation:

First Step:

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Second Step:

Find out x-intercept by substituting y=0.

0=-\frac{1}{5}x+3\\\\\frac{1}{5}x=3\\\\x=15\\\\Hence\ line\ passes\ through\ (15,0).

Third Step:

Draw a line passing through (0,3)\ and\ (15,0).

Graph is attached.

7 0
3 years ago
Marco went to the cafeteria to buy chicken sandwiches, C, worth $2.00, and hamburgers, h, worth $2.50.
yaroslaw [1]

Answer:

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Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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dedylja [7]

Answer:

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Step-by-step explanation:

because each week she buys five so you multiply 5 by however many weeks.

5 0
3 years ago
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skad [1K]

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Step-by-step explanation:

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We can attempt to set up the equation given in the same way.

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Add y to both sides and the 0 can drop out.

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This is also equal to:

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In this equation the m is equal to 1 and the b is equal to 0.

Taking this into account the answer is D.

8 0
3 years ago
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