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Aloiza [94]
3 years ago
13

Work out m and c for the line: y = 8 − x

Mathematics
2 answers:
4vir4ik [10]3 years ago
5 0
The answer is

M = -1
C = 8
vlabodo [156]3 years ago
4 0
The equation is y=mx+c
C=8
M=-1
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The area of the circle is 153.86. Plz give me brainliest!

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3 years ago
Last Sunday a certain store sold copies of 256 Newspaper A for $1.00 each and copies of Newspaper B for $1.25 each, and the stor
Marat540 [252]

Answer:

D. \frac{400p}{500-p}

Step-by-step explanation:

let's call A the number of copies sold of newspaper A and B the number of copies sold of newspaper B.

So, we can formulate the following equations from the sentence: a certain store sold copies of 256 Newspaper A for $1.00 each and copies of Newspaper B for $1.25 each as:

A + B = 256                               (1)

1A + 1.25 B = Total Revenue    (2)

Then, r and p are equal to:

r=\frac{A}{Total Revenue}*100=\frac{100A}{A+1.25B}     (3)

p=\frac{A}{256} *100=\frac{100A}{256}                            (4)

Isolating A from (4) and B from (1), we get:

A=\frac{256p}{100} =2.56p                (5)

B=256-A=256-2.56p                         (6)

Finally, replacing (5) and (6) in (3), we get:

r=\frac{100A}{A+1.25B}=\frac{100(2.56p)}{2.56p+1.25(256-2.56p)}\\\\r=\frac{256p}{2.56p+320-3.2p}=\frac{256p}{320-0.64p}\\\\r=\frac{256p/0.64}{(320-0.64p)/0.64}=\frac{400p}{500-p}

7 0
3 years ago
Help this is due today and I don’t know how to do it you please show me the steps:)
DochEvi [55]

Answer:

628 inches²

Step-by-step explanation:

the equation for surface area is SA=2(lw+lh+hw) so..

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3. 2×314

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Hope this helps! :)

7 0
3 years ago
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