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3 years ago

What is N in -2n+2(3n+14)=-20

Mathematics

1 answer:

seraphim [82]3 years ago

4 0

Answer:

To solve for n you need to get it by itself

First you want to distribute your 2 through the (3n+14)

-2n+6n+28=-20 (2*3n+2*14= 6n+28)

Now you want to combine any like terms if possible

4n+28=-20 (-2n+6n=4n, both like terms)

Then you want to subtract -28 from both sides

4n=-48 (28-28=0, -20-28=-48)

Lastly you want to divide both sides by 4

n=-12 (4n/4=n, -48/4= -12)

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4 years ago

Travis is deciding how to study math tonight he is choosing between studying ofG patterns P or equations E he also is deciding w

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3 years ago

Explain which situation will give you the best price: a discount of 15% and then 10% off that amount, a discount of 10% and then

Katarina [22]

Answer:

Step-by-step explanation:

Let X be the initial price and P be the final price.

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Hence, the finial price is 76.5% of the initial price.

#Given a discount of 10% then 15% of that amount:

$P_1=(1-o)[X(1-d)}\\\\=(1-0.15)[X(1-0.1)]\\\\=0.765X$

Hence, the finial price is 76.5% of the initial price.

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3 years ago

400 ml of squash is made by mixing 50 ml of cordial with water. What fraction of the drink is water?

avanturin [10]

Answer:

Fraction of drink that is water = = 0.875 = 87.5 %

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400 ml of squash is made by mixing 50 ml of cordial with water.

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3 0

3 years ago

What is N in -2n+2(3n+14)=-20​

What is N in -2n+2(3n+14)=-20