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MArishka [77]
3 years ago
9

Find out n of these equations: 4n + 10 = 18 4n - 13 = 23 10n + 8 = 78

Mathematics
2 answers:
vladimir2022 [97]3 years ago
6 0
A)
N = 2
b)
N = 9
C)
N = 7
Kryger [21]3 years ago
4 0
4n+10=18                         4n-13=23                           10n+8=78
4n+10-10=18-10              4n-13+13=23+13               10n+8-8=78-8
4n=8                                 4n=36                                 10n=70
n=2                                   n=9                                      n=7
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(6x-5)+(-7x+2)<br> and <br> (6x-5)-(-7x+2)<br> Need work
tia_tia [17]

Answer:(6x-5)+(-7x+2)

1 Remove parentheses.

6x-5-7x+2

2 Collect like terms.

(6x-7x)+(-5+2)

3 Simplify.

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_____________________________

1 Remove parentheses.

6x-5+7x-2

6x−5+7x−2

2 Collect like terms.

(6x+7x)+(-5-2)

3 Simplify.

13x-7

Hope this helps

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7 0
3 years ago
Greg spends $0.45 on eraser and $0.30 0n a pen.how much money does greg spend
Digiron [165]

Answer:

$0.75

Step-by-step explanation:

Greg spends $0.45 on a eraser and $0.30 on a pen. How much money does Greg spend?

Well first you find the key words, (How much) which means you will be using addition in this problem. The numbers you will be adding are $0.75 and $0.30 which equals, $0.75


7 0
3 years ago
Read 2 more answers
10x^2-3x-27<br> Factor the trinomial
noname [10]

Answer:

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Step-by-step explanation:

10x^2-3x-27

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(5x)(2x+3)-9(2x+3)

(2x+3)(5x-9)

Hope this helps!

6 0
3 years ago
I don't understand can someone explain
Tomtit [17]
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3 0
3 years ago
What is 12% of 79 ??
Rus_ich [418]
12% Of 79 Would be 9.48. Hope this helped :)
8 0
3 years ago
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