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Ilia_Sergeevich [38]
3 years ago
11

If the sum of a number and seven is doubled, the result is six less than the number. Find the number

Mathematics
1 answer:
8090 [49]3 years ago
7 0

Answer:

-20

Step-by-step explanation:

Let the number be Y

If the sum of a number and seven is doubled, the result is six less than the number, The statement is as expressed below

2(Y+7)= Y-6

Find the value of Y

2Y+14=Y-6

Put the like terms together

2Y-Y=-6-14

Y=-20

The number is therefore -20

<em>Verifying</em>

2(-20+7)=-20-6

2(-13)=-26

<u>-26=-26</u>

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Here,

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Sedentary              1.00                1.00

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Compute the value of EER as follows:

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        = 662 - (9.53 \times 22) + 1.11 \times (15.91 \times 81.6466 + 539 \times 1.778)\\\\=662-209.66+1.11\times (1298.997406+958.342)\\\\=452.34+2505.64674066\\\\=2957.98674066\\\\\approx 2962

Thus, the EER for a 22-year-old male college student is approximately 2962 kcal.

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