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Yuri [45]
2 years ago
13

3n + 8 = 35 solve for n

Mathematics
2 answers:
Debora [2.8K]2 years ago
7 0

Answer:

n = 9

Step-by-step explanation:

3n+8=35 –– First, subtract 8 from both sides

3n=27 –– Divide both sides by 3 to get n alone

n = 9

Check:

3(9)+8=35

27+8=35

35=35

liberstina [14]2 years ago
3 0

Answer:

Step-by-step explanation:

3n+8=35

subtract 8 on both sides

3n=27

n=9

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you scored 72% on the Unit 1 exam and then 90% on the unit 2 exam. what was your percentage acorr increase
iVinArrow [24]
The difference between 90% and 72% is 18%
6 0
3 years ago
3x – y = 4 2x + y = 6 (2, 2) (3, 0) (–1, –7) (0, –4)
Vitek1552 [10]
The answer is 2,2

as 3*2 - 2 = 4
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3 0
3 years ago
Read 2 more answers
The function of f(x) = 3x + 2 has a domain of -3 < x < 5. What is the domain of f-1(x)?
Flura [38]
<h3>Answer:    -7 < x < 17</h3>

====================================================

Explanation:

Plug in the lower bound of the domain, which is x = -3

f(x) = 3x+2

f(-3) = 3(-3)+2

f(-3) = -9+2

f(-3) = -7

If x = -3, then the output is y = -7. Since f(x) is an increasing function (due to the positive slope), we know that y = -7 is the lower bound of the range.

If you plugged in x = 5, you should find that f(5) = 17 making this the upper bound of the range.

The range of f(x) is -7 < y < 17

Recall that the domain and range swap places when going from the original function f(x) to the inverse f^{-1}(x)

This swap happens because how x and y change places when determining the inverse itself. In other words, you go from y = 3x+2 to x = 3y+2. Solving for y gets us y = (x-2)/3 which is the inverse.

-----------------------

In short, we found the range of f(x) is -7 < y < 17.

That means the domain of the inverse is -7 < x < 17 since the domain and range swap roles when going from original to inverse.

6 0
3 years ago
Spends at most 30, buys boxes of crayons that cost 2 per box, also buys a poster for 5. Wants to know how many boxes of crayons
My name is Ann [436]

Answer:

for 15 crayons box she can spend

Step-by-step explanation:

The computation of the number of crayons for which she can spend is shown below:

Given that

She can spend $30

And, the cost is 2 per box

So, for the number of crayons for which she can spend is

= $30 ÷ 2

= 15 crayons box

Hence, for 15 crayons box she can spend

The same would be relevant

4 0
3 years ago
Negative nine times the sum of a number and eighteen
bekas [8.4K]
-9(n+18) is the answer
5 0
3 years ago
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