Answer:
3a: 2c
Step-by-step explanation:


I not sure but this what i think
He save $43.58
His final bill would be $80.92
Solution #1:
35/100 × $124.50 = $43.575
When you round $43.575 to the nearest hundredths you will get $43.58
Solution #2:
$124.50 - $43.58 = $80.92
Answer:
I think the answer is Strong Positive Association.
As x gets bigger y gets bigger so it is definetly a positive association. I don't think it is a perfect association because there are a few points where its not consistently increasing.
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<span>Click here to see ALL problems on Geometry Word Problems<span><span>Question 503498: <span>a community flower garden measuring 12 meters by 16 meters is to have a pedestrian pathway installed all around it, increasing the total area to 285 square meters. What ill be the width of the pathway?
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<span>Borders are interesting because you have to remember that you have to pave the 4 corners.
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The area of the garden = 12*16 = 192 square meters.
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Then you add the border with width 'x'.
So,
Length is now L + 2x
Width is now W + 2x
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We are told:
(L+2x)(W+2x) = 285
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(12+2x)(16+2x) = 285
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192 +24x +32x +4x^2 = 285
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4x^2 + 56x + 192 = 285
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4x^2 + 56x - 93 = 0
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<span><span>Solved by pluggable solver: SOLVE quadratic equation with variable</span><span>Quadratic equation (in our case ) has the following solutons:
For these solutions to exist, the discriminant should not be a negative number.
First, we need to compute the discriminant : .
Discriminant d=4624 is greater than zero. That means that there are two solutions: .
Quadratic expression can be factored:
Again, the answer is: 1.5, -15.5. Here's your graph:
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You cannot have a negative width, so the border is 1.5 m.
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Always check your work.
L = 12 + 2(1.5) = 15
W = 16 + 2(1.5) = 19
15*19 = 285
Correct.
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Answer: The border is 1.5 meters wide.
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