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3 years ago

Help me please don't know this

Mathematics

2 answers:

nignag [31]3 years ago

7 0

Answer:

1.multiply both sides by 5 n=−1/5x5 cancel out the 5 so n=-1

2.add both sides by 13 n=-12+13 simplify -12+13 to 1 n=1

Step-by-step explanation:

larisa86 [58]3 years ago

4 0

n/5 = -1/5

5n = -5

n = -1

n - 13 = -12

n = -12 + 13

n = 1

n + 15 = -10

n = -10 - 15

n = -25

-5n = 1

n = -1/5

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Please help me with this question!!

ziro4ka [17]

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3 years ago

2 7/8 plus 3 2/8 plus 1 1/8

Olin [163]

Answer:

7.25

Step-by-step explanation:

2 7/8 + 3 2/8 * 1 1/8 = 7.25

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3 years ago

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you have 96 feet of fencing to enclose a rectangular pen for your dog. the pen should be three times long as it is wide. write a

swat32

Answer:

length = 36 ft; width = 12 ft

Step-by-step explanation:

Let the width be x.

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2 years ago

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Simplify: 12 + (-38) + 27

DedPeter [7]

Answer:

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Step-by-step explanation:

When a positive is multiplied by a negative, the sign becomes negative. Therefore, 12+(-38) becomes 12-38. So 12-38+27= 1.

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3 years ago

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7 + (2 + 6) 2 ÷ 4 ⋅ (1/2)^4 A: 23 B: 18 C: 9 D: 8

Drupady [299]

Answer:

D: 8

Step-by-step explanation:

7 + (2 + 6) ^2 ÷ 4 ⋅ (1/2)^4

According to PEMDAS

We to parentheses first

7 + (8)^ 2 ÷ 4 ⋅ (1/2)^4

Then we do exponents

7 + 64 ÷ 4 ⋅ (1/16)

The multiply and divide from left to right

7+64 ÷ 4 ⋅ (1/16)

7+16 ⋅ (1/16)

Then add and subtract from left to right

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3 years ago