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dem82 [27]
3 years ago
15

Write a system of equations to describe the situation below, solve using substitution, and fill in the blanks.

Mathematics
1 answer:
Tems11 [23]3 years ago
3 0
The answer is =20 you can thank me later
You might be interested in
3x^2 + 6 - 2x + 5x - 4x^2 + 9
Over [174]
3x * 3x = 9x

9x + 6 - 2x + 5x - 4x^2 + 9

9x + 6 - 7x - 4x * 4x + 9

9x + 6 - 7x - 16x + 9

9x + -7x = 2x + 6 - 16x + 9

2x + 6 - 16x + 9

2x + (-3) - 16x

-14x + (-3) is the expression?
4 0
3 years ago
A radio station uses 1/6 of its time for news in a 12 hours day how many hours are used for news?
Verdich [7]

Answer:

2 hours

Step-by-step explanation:

we know that

To find the number of hours that are used for news, multiply the total time by the fraction 1/6

so

12(1/6)=2 hours

6 0
3 years ago
Need help fast hs geometry
harina [27]
  • Measure of angle C = 100°
  • Measure of angle A = 40°
  • We know, sum of all angles of a triangle is 180°.
  • Therefore, the measure of angle B

= [180 - (100 + 40)]° = 40°

  • When two angles of a triangle are equal, then the triangle is isosceles.
  • Here, the measure of angle A and B are equal, i.e., 40°
  • So, ∆ABC is an isosceles triangle.

<u>Answers:</u>

  1. <u>4</u><u>0</u><u>°</u>
  2. <u>Yes</u>

Hope you could get an idea from here.

Doubt clarification - use comment section.

6 0
2 years ago
Help plz I don't uderstand any of these
Archy [21]
So, all you would do is use distribution.
For example: D is .5(x+3) = -3(x-.5)
you would do
.5 times x+3, which equals .5x+ 1.5
So, .5x+1.5=-3x+1.5
because -3*x-.5 is -3x+1.5.
Then, you would just get x by itself.

.5x+1.5=-3x+1.5
add 3 over to .5 = 3.5x;
subtract 1.5 over to 1.5 = 0
now you have 3.5x = 0
divide by 3.5 to get x by itself and you get zero.

x=0

When you substitute it in, you should have them both equal to each other. I hope this helps. :)
3 0
3 years ago
Hurry i need asap thx
soldier1979 [14.2K]

Answer the Answer is -8                                                  

3 0
3 years ago
Read 2 more answers
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