SOLUTION: solve the inequality. write answer in interval notation.
100 < or equal to 10(5x-2) < or equal to 200
for what values of x is the perimeter of the rectangle from 40 to 60
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Question 148434: solve the inequality. write answer in interval notation.
100 < or equal to 10(5x-2) < or equal to 200
for what values of x is the perimeter of the rectangle from 40 to 60 feet?
length:x+3
width: 2x
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
write answer in interval notation.
100 < or equal to 10(5x-2) < or equal to 200
Divide thru by 10 to get:
10 <= 5x-2 <=20
Add 2 along the line
12 <= 5x <= 22
Divide thru by 5 to get:
2.2 <= x <= 4.4
==================
for what values of x is the perimeter of the rectangle from 40 to 60 feet?
length:x+3
width: 2x
--------
40 <= perimeter <=60
40 <= 2(2x+x+3) <=60
20 <= 3x+3 <= 30
17 <= 3x <= 27
(17/3) <= x <= 9
==========================
Cheers,
Stan H>
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