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3 years ago

13

Sandy programmed a website’s checkout process with an equation to calculate the amount customers will be charged when they downl

oad songs. The website offers a discount. If one song is bought at the full price of $1.29, then each additional song is $.99. State an equation that represents the cost, s , when c songs are downloaded.

1 answer:

Makovka662 [10]3 years ago

3 0

if one customer shows up, and she buys one song, that's $1.29, if she doesn't buy anymore, then that's the charge.

the first song is always at a full price, and after that, to encourage buying, the next ones are just 99 cents, let's see how it goes after a few songs purchases.

1 song.........................$1.29

2 songs.......................$1.29 + 0.99(2)

3 songs.......................$1.29 + 0.99(3)

4 songs.......................$1.29 + 0.99(4)

c songs.......................$1.29 + 0.99(c)

s(c) = 1.29 + 0.99c.

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Answer:

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Step-by-step explanation:

Let

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y ----> amount of almond sent

z ----> the amount of pineapple sent

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Part 1) Bottle 1

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almond=?

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we have

$z=4$

<em>Find the value of x</em>

substitute the value of z in equation B

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<em>Find the value of y</em>

substitute the value of z in equation C

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substitute the value of y in equation A

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<em>Find the value of z</em>

substitute the value of x in equation B

$2=\frac{1}{4}z$

solve for z

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we have

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convert to an improper fraction

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