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3 years ago

How do you write twice the sum of seven and a number

Mathematics

2 answers:

scZoUnD [109]3 years ago

5 0

Answer:

2 (7 + n)

Step-by-step explanation:

2 (7 + n)

For this equation you need to put parenthesis to show that you need to add, then multiply.

Hope this helps! :)

krek1111 [17]3 years ago

3 0

I believe to do this, you would write the eqaution 2(7+x).

The question says twice the sum (addition) of 7 and a number. The x takes the place of a number. Putting it all together we get 2(7+x).

Hope this helps! If you appreciated my answer, please brainliest me!

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bixtya [17]

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160x + 120y ≤ 680

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2 years ago

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Vikentia [17]

The formula of an area of a circle:

$A=\pi r^2$

r - a radius

We have r = 14m. Substitute:

$A=\pi\cdot14^2=196\pi\ m^2$

If you want an approximate area, you can accept $\pi\approx3.14$

Then:

$A\approx196\cdot3.14=615.44\ m^2$

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