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amm1812
3 years ago
10

A student states that the constant of proportionality is 2.5 since 10 - 7.5 = 2.5.

Mathematics
1 answer:
Svetradugi [14.3K]3 years ago
7 0
I cannot see the table. But if I could that would be helpful.

But, if you were to look at the table see if the numbers are increasing or decreasing for the y column. Once you figure this out, find out how much the numbers are increasing/decreasing by and that should be the answer for the constant of proportionality. If it is decreasing, it would be a negative number. If it is increasing, it would be a positive number.
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iren2701 [21]

Step-by-step explanation:

  • Length of rectangle = 7 less than the twice the breadth
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Let us say the breadth as b and length as l.

→ Length = 7 less than the twice the breadth

→ l = 2b - 7 ...(1)

Now, according to the question,

→ Perimeter of rectangle = 2(l + b)

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→ 40 = 2(3b - 7)

→ 40 = 6b - 14

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→ 54 = 6b

→ 54 ÷ 6 = b

→ <u>9</u><u> m = Breadth</u>

Now, finding length.

→ l = 2b - 7

→ l = 2(9) - 7 m

→ l = 18 - 7 m

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2 years ago
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Rama09 [41]

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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