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Veronika [31]
3 years ago
8

A party rental company has chairs and tables for rent. The total cost to rent 3 chars and 2 tables is $20. The total cost to ren

t 8 chairs and 4 tables is $45. What is the cost to rent each chair and each table?
Mathematics
1 answer:
Rufina [12.5K]3 years ago
6 0

<span><span>Equations:
</span><span> 8c + 4t = 45
3c + 2t = 20

Modify for elimination: ( multiply 2</span>nd<span> eq by -2)
</span><span> 8c + 4t = 45
-6c + -4t = -40</span></span>

<span>
<span>
Subtract and solve for "c":
2c = 5
c = $2.50 (cost of one chair)

Solve for "t":
3c + 2t = 20
3(2.50) + 2t = 20
7.50 + 2t =20</span></span>

2t=12.50

<span><span>T= 12.50/2 =6.25
</span> t = $ 6.25 (cost of one table)</span>

 Table = 6.25 each

Chair = 2.50 each


Check:

3(2.50) + 2(6.25) =

7.50 +12.50 = 20

 

8(2.50) + 4(6.25) =

20.00 + 25.00 = 45.00


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<h3>How to find the percentage from z-score?</h3>

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We want to find the area under the curve from x = 248 to x = 158.

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