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KatRina [158]
2 years ago
7

We want to solve the following system of equations using the substitution method.

Mathematics
1 answer:
inna [77]2 years ago
5 0
In the second equation you are given what Y equals, which is (-5x - 3). You would use this equation and plug it into the y value given in the first equation where it says 2y and solve

That would be

3x - 2(-5x - 3) = -6
3x + 10x + 6 = -6
3x + 10x = -6 - 6
13x = -12
X = -12/13

Then if you want to solve for Y you can use any equation and plug in the x-value found.

I’m going to use equation 2.

Y = -5x - 3
Y = -5(-12/13) - 3
Y = 4.615 - 3
Y = 1.615

(-12/13, 1.615)

Therefore the x-value is -12/13 and the y-value is 1.615.
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laura spends 4 hours reading a book that is 76 pages long. what is the average number of pages she read per hour?
Studentka2010 [4]

The average number of pages she reads per hour is 19 pages per hour

<h3>How to determine the average number of pages she read per hour?</h3>

The given parameters are:

Number of pages = 76 pages

Number of hours = 4 hours

The average number of pages she reads per hour is calculated using the following formula

Average = Number of pages/Number of hours

Substitute the known values in the above equation

Average = 76 pages/4 hours

Evaluate the quotient

Average = 19 pages per hours

Hence, the average number of pages she reads per hour is 19 pages per hours

Read more about average at:

brainly.com/question/20118982

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5 0
1 year ago
What’s the answer too 3a - 5 = -14
GrogVix [38]

Answer:

well mostly the answer is welcome to help :) a = -15

4 0
3 years ago
Read 2 more answers
A. C+7&lt;_3<br> B. C - 3 &gt; 1<br> C. C - 7&lt; 3
olga_2 [115]

c + 7 <  3
8 0
3 years ago
Simplify<br> 6x^3y^9/36x^3y^-2
AnnZ [28]
6x^3y^9/36x^3y^-2  The x^3 values cancel each other out leaving the 1/6
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y^11/6
5 0
2 years ago
A. $15.00<br><br>B. $20.00<br><br>C. $22.00 <br><br>D. $25.00
Makovka662 [10]
Hey!~

To get the answer all you would need to do is divide 589/31=19.
If you round $19 dollars up, the closest number would be $20. The answer is B. $20.00.

Hope this helps and have a great day!

-Lindsey
8 0
3 years ago
Read 2 more answers
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