How to solve 3n+9=7n-15

Answers

Answer 1

Answer: Simplifying3n + 9 = 7n + -15
9 + 3n = 7n + -15
9 + 3n = -15 + 7n
9 + 3n = -15 + 7n

9 + 3n + -7n = -15 + 7n + -7n
3n + -7n = -4n9 + -4n = -15 + 7n + -7n
7n + -7n = 09 + -4n = -15 + 09 + -4n = -15
9 + -9 + -4n = -15 + -9
9 + -9 = 00 + -4n = -15 + -9-4n = -15 + -9
-15 + -9 = -24-4n = -24
Divide each side by -4
n = 6

Answer 2

Answer: The answer to this problem is 6

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What’s the place value of the 4 in 7.724

Answers

It’s the thousandths place

Ebonae's fish tank holds 40 gallons. How many quarts does the fish tank hold

Answers

Hey there, we know that 1 gallon equals 4 quarts, 4*10=40, so, 40 galloons equals 4*40=160 quarts. Therefore, the answer is 160 quarts.

Answer:

160 quarts

Step-by-step explanation:

10 x 4 = 40

40 x 4 = 160

What is the area of the rectangular prism? A.) 120 in2
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D.) 220 in2

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