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svet-max [94.6K]
3 years ago
11

Consider the following table. Is the relationship proportional? Explain your answer.

Mathematics
2 answers:
iragen [17]3 years ago
6 0
Not proportional there is no pattern and one of the point is negative and the rest is positive so it makes no sense
hram777 [196]3 years ago
5 0

Answer:

Not proportional.

I looked at the following ordered pairs:

(-2,-27)

(1,12)

(4,57)

(10,147)

Please see I have the points correct.

Thank you kindly.

Step-by-step explanation:

To see if it is proportional, we just need to see if the following equality holds:

\frac{-27}{-2}=\frac{12}{1}=\frac{57}{4}=\frac{147}{10}?

I'm going to put each fraction into my calculator.

13.5=12=14.25=14.7 which is totally not true so this relationship is not proportional.

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The area of a rectangular wall of a barn is 252 square feet. Its length is 10 feet longer than twice its width. Find the length
valentinak56 [21]

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Step-by-step explanation:

Let x = width of the wall.

Then, Length of the wall =  10+2x

Since , Area of rectangle = length x width

Then, as per given,

252= (10+2x)x\\\\\Rightarrow\ 252=10x+2x^2\\\\\Rightarrow\ 2x^2+10x-252=0\\\\\Rightarrow\ x^2+5x-126=0\\\\\Rightarrow\ x^2+14x-9x-126=0\\\\\Rightarrow\ (x+14)-9(x+14)=0\\\\\Rightarrow\ (x+14)(x-9)=0\\\\\Rightarrow\ x=-14 \ or \ x= 9

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So width = 9 feet and length = 10+2(9)=10+18 = 28 feet

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Together, a house and the lot it is on costs $40,000. If the house costs seven times as much as the lot, how much does the lot c
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The lot costs 5000 dollars.

<u>Step-by-step explanation:</u>

The cost of a House and the lot = $40,000.

Let us assume the cost of lot as 'x'

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The cost of both the house and the lot= x + 7x

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