3 years ago

Does anyone know this?

Mathematics

1 answer:

Strike441 [17]3 years ago

5 0

Yes me the answer is b

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-7(n - 2) + 2n = -5(n + 6)

skad [1K]

Given the expression below

$-7(n-2)+2n=-5(n+6)$

To find n

Open the brackets

$\begin{gathered} -7(n-2)+2n=-5(n+6) \\ -7n+14+2n=-5n-30 \\ -7n+2n+14=-5n-30 \\ -5n+14=-5n-30 \end{gathered}$

Collect like terms

$\begin{gathered} -5n+14=-5n-30 \\ -5n-(-5n)=-30-14 \\ 0\ne-44 \end{gathered}$

Since, the sides are not equal,

Hence, there is no solution

7 0

1 year ago

Is –5 × –5 positive or negative?

liberstina [14]

Answer:

positive

Step-by-step explanation:

a negative times a negative is always a positive

7 0

3 years ago

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Help me please, its really easy.

notka56 [123]

Hey there. To find the answer solve 8^3=512.

Count the rows and columns of each to get C as your answer.

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3 years ago

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I did not do as good as I hoped on my math model :(

pochemuha

I’m sorry! I hope you do better next time.

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3 years ago

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Hamza bought 8 gallons of brown paint to paint his kitchen and dining room. Unfortunately, when

dalvyx [7]

Answer:

4 gallons of white paint

Step-by-step explanation:

Let

x -----> quantity of gallons of white paint that Hamza has to buy

we know that

A gallon of white paint must mixed with 2 gallons of brown paint

using proportion

$\frac{1}{2}\frac{gallon\ white}{gallons\ brown} =\frac{x}{8}\frac{gallons\ white}{gallons\ brown}\\\\x=8/2\\x=4\ gallons\ white$

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3 years ago