-15x+8y=-30 -5x+5y=-10
1 answer:
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Answer:
<em>Martin saved $75 on the television because of the sale</em>
Step-by-step explanation:
<u>Equations</u>
Let's call x=the original price of the television (before discount).
The television had been on sale for 25% off, this means the discount was:
25% of x = = 0.25x
The sale price was the original price minus the discount:
x - 0.25x = 0.75x
This is what Martin paid, thus:
0.75x = 225
Dividing by 0.75:
x = 225 / 0.75
x = $300
The original price of the television was $300, and the discount was:
0.25*$300 = $75
Martin saved $75 on the television because of the sale
Answer:
<h2>P = 48</h2><h2>A = 144 </h2>Step-by-step explanation:
The formula of regular polygon with <em>n</em> sides of length <em>b</em> and apothem <em>a</em>:
We have:
n = 6
b = 8
a = 6
Substitute:
The perimeter: