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3 years ago

11

The furniture store sells each chair (c) for $225. To have them shipped to their house, the store charges $60. If the Browns bou

ght c number of chairs, how much did they spend (s)?

1 answer:

11111nata11111 [884]3 years ago

6 0

<h3>Answer: s = 225c+60</h3>

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

Explanation:

1 chair = 225 dollars

c chairs = 225c dollars .... multiply both sides by c

This shows that buying c chairs costs 225c dollars

c is a placeholder for a positive whole number

Add on the $60 shipping cost to get the total cost 225c+60

Therefore s = 225c+60

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A table of values can be used to represent variables that are directly proportional.

The complete table of proportions is:

$\left[\begin{array}{ccccccccc}Letters&10&2&[150 ]&7&1&500&[420] \\Cost&0.45&0.90&6.75&[0.315]&[0.045 ]&[22.5 ] & 18.90\end{array}\right]$

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$\left[\begin{array}{ccccccccc}Letters&10&2&[\ ]&7&1&500&[\ ] \\Cost&0.45&0.90&6.75&[\ ]&[\ ]&[\ ] & 18.90\end{array}\right]$

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<em /> $C \to$ <em> Cost</em>

<em />

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<em /> $k \to$ <em> ratio of proportion</em>

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$C = kL$

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$k = 0.045$

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$C = 0.045L$

<u>When C = 6.75, we have:</u>

$C = 0.045L$

$6.75 = 0.045L$

Solve for L

$L = \frac{6.75}{0.045}$

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<u>When L = 7, we have:</u>

$C = 0.045L$

$C = 0.045 \times 7$

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<u>When L = 1, we have:</u>

$C = 0.045L$

$C = 0.045 \times 1$

$C = 0.045$

<u>When L = 500, we have:</u>

$C =0.045L\\$

$C =0.045 \times 500$

$C =22.5$

<u>When C = 18.90, we have:</u>

$C = 0.045L$

$18.90 = 0.045L$

Solve for L

$L=\frac{18.90}{0.045}$

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