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kirill [66]
4 years ago
7

How do you solve 9n+4=5n+18 and what is the answer

Mathematics
2 answers:
Marysya12 [62]4 years ago
8 0
9n+4=5n+18\\9n-5n=18-4\\4n=14\ /:4\\n=3.5\\\\Ans.\ n=3.5
kenny6666 [7]4 years ago
4 0
9n+4=5n+18\ \ \ \ |subtract\ 4\ from\ both\ sides\\\\9n=5n+14\ \ \ \ \ |subtract\ 5n\ from\ both\ sides\\\\4n=14\ \ \ \ \ \ |divide\ both\ sides\ by\ 4\\\\n=\frac{14}{4}\\\\n=\frac{7}{2}\\\\\boxed{n=3\frac{1}{2}}

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Without multiplying, tell which is greater: 4/5 x 45 or 2/3 x 45. Explain.
Aloiza [94]

Answer: It is 4/5 x 45

Step-by-step explanation: Hope i helped please mark brainliest!

I know there is suppose to be no multiplying but if you mulitply in your head 4/5 x 45 is 36 and 2/3 x 45 is 30

therefore, 4/5 x 45 is greater!

also, if not multiplying 0.8(5/4) is greater than 0.667(2/3). Therefore, 4/5 is greater than 2/3.

3 0
4 years ago
Together, Ashley and Gabby watched a total of 14 hours of television over the weekend. Ashley watched 6 times as many hours as G
Rainbow [258]

Answer:

The number of times over the Weekend that:

Ashley watched TV = x = 12 hours

Gabby watched TV = y = 6 hours

Step-by-step explanation:

Let us represent:

The number of times

Ashley watched TV = x

Gabby watched TV = y

Together, Ashley and Gabby watched a total of 14 hours of television over the weekend.

= x + y = 14..... Equation 1

x = 14 - y

Ashley watched 6 times as many hours as Gabby.

x = 6y

Using substitution method

We substitute 14 - y for x

14 - y = 6y

14 = 6y + y

14 = 7y

y = 14/7

y = 2 hours

Solving for x

x = 14 - y

x = 14 - 2

x = 12 hours

Therefore:

The number of times over the Weekend that:

Ashley watched TV = x = 12 hours

Gabby watched TV = y = 6 hours

6 0
3 years ago
(555) what is the value of 5 in the tens place
creativ13 [48]
If you have 555, 50 would be how many tens you have. so you would have 5 
7 0
3 years ago
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stira [4]

Answer:

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Step-by-step explanation:

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The inputs are on the x-axis so when x = -1, the graph shows that the function f at -1 is approximately -8.

When x = 1, the function f is approximately -12.

3 0
3 years ago
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Bas_tet [7]

m=24/23 is the slope

I hope this helps

~Ayden


6 0
3 years ago
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