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Sergio039 [100]
2 years ago
13

What would be the first step to solve for n in the equation 3n-7=30?

Mathematics
2 answers:
taurus [48]2 years ago
4 0
The first step would be to add 7 to both sides.
3n-7=30
add 7
3n=37
divide by 3
n=12.33
olya-2409 [2.1K]2 years ago
3 0

Answer:

n = 37/3

Step-by-step explanation:

3n = 30 +7

3n = 37

n = 37/3

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Solve each equation.<br> 1/3a = -5 a = ?<br> 12 - b = 12.5 b = ? <br> -0.1 = -10c c = ?
Rina8888 [55]

Answer:

a = -15, b = -.5, c = -1

Step-by-step explanation:

1/3a = -5 --> multiply each side with 3 --> a = -15

12 - b = 12.5 --> subtract 12 from both sides --> -b = .5 --> multiply each side with -1 to get b positive --> b = -.5

.1 = -10c --> multiply each side with -10 --> c = -1

8 0
3 years ago
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liubo4ka [24]
The answer above is correct.
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3 years ago
11. Circle all of the examples that are perfect square. (You must circle all correct responses to receive credit)
Law Incorporation [45]

Good evening ,

Answer:

Circle 0 , 4 , 16

Step-by-step explanation:

→ 0 = 0²

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4 0
3 years ago
Amanda recorded the temperatures at which two oils freeze:
lianna [129]

Answer:

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Step-by-step explanation:

Well since 3.1 is greater than -6.1 then it should be Peanut oil freezes at a high temperature. I did the test and I got it right. I hope you do to. :)

4 0
3 years ago
The pH of 0.0001 M solution of Ca(OH)2 is
12345 [234]

Step-by-step explanation:

Since Ca(OH)2 is Basic, we need to find pOH:

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pOH = - log(0.0001)

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Therefore,

pH of 0.0001M sol. of Ca(OH)2 = 10

5 0
3 years ago
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