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makvit [3.9K]
3 years ago
13

Solve the equation. n+75=105

Mathematics
2 answers:
34kurt3 years ago
6 0

Answer:

30

Step-by-step explanation:

n+75=105

We move all terms to the left:

n+75-(105)=0

We add all the numbers together, and all the variables

n-30=0

We move all terms containing n to the left, all other terms to the right

n=30

MariettaO [177]3 years ago
5 0

Answer:

n = 30....................

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Please answer this multiple choice question CORRECTLY for 30 points and brainliest!!
Maslowich

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Read 2 more answers
The difference of the square of a number and 28 is equal to three times that number find the negative solution
bazaltina [42]

Answer:

The negative solution = x = -4

Step-by-step explanation:

Let the number be = x

The square of number = x²

The difference between the square of a number and 28 = x²-28

Given that the difference of the square of a number and 28 is equal to three times that number.

Thus, the equation becomes

x^2-28=3x

subtract 3x from both sides

x^2-28-3x=3x-3x

x^2-3x-28=0

\left(x+4\right)\left(x-7\right)=0

x+4=0\quad \mathrm{or}\quad \:x-7=0

x=-4,\:x=7

Thus, the negative solution = x = -4

6 0
3 years ago
Need Help pretty fast.
kkurt [141]
Let us say that the amount needed to open an account is uniformly 10,000 in both methods and increases 10% annually and increases 1% per 1000. Original amount = 10, 000 ~ 10% <span><span>
1.      </span>Harrison </span>  
10% ~ increases 1% per 1000
Money = 11, 000
Total Interest = 11% <span>

After 2 years = 11,000 x 0.22 = 2420 + 11,000 = 13, 420</span>  


<span><span>2.      </span>Sherrie</span>
10, 000 ~ 11%
Money = 10, 000
Total Interest = 11%

<span>After 2 years = 10, 000 x 0.22 = 2200 + 10, 000 = 12, 200</span>

Hope this is right. What matters is the values the original values and the change in values, it really will depend on the numbers given.


8 0
3 years ago
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anyanavicka [17]

28=9x-8

36=9x

x=4

:) hope it helps!

8 0
3 years ago
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