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tangare [24]
3 years ago
7

What is the solution to the system of equations? y = –3x – 2 5x + 2y = 15 (–40, 19) (–19, 55) (19, –40) (55, –19)

Mathematics
1 answer:
kobusy [5.1K]3 years ago
5 0

Step-by-step Answer:

What is the solution to the system of equations?

y = –3x – 2 ..............(1)

5x + 2y = 15..............(2)

Substitute (1) in (2) to give

5x + 2(-3x-2) = 15

5x-6x-4 = 15

-x-4=15

solve for x:

-4-15 = x

x=-19

Now substitute x=-19 into equation (1)

y = -3x-2 = 57-2 = 55

Therefore the solution is (-19, 55)

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far

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jesus told me and u gotta trust jesus and not ur math teachers logic which is always weird

8 0
3 years ago
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7th grade girl!<br><br> *(urgent, please help! )*
GenaCL600 [577]

For all the angles, you will have to solve for x

A: 162 = 3x

162/3 = x

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2x = 180 - 120

2x = 60

x = 60/2

x = 30

W: 150 = 30x

150/30 = x

5 = x

S: 20 + 2x = 90

2x = 90 - 20

x = 70/2

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Q : 45 + 5x = 90

5x = 90 - 45

x = 45/5

x = 9

P: not too sure if its 150,

150 + (x+5) = 180

x+5 = 180- 150

x = 30 - 5

x = 25

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7 0
3 years ago
150 seconds is &gt;, &lt;, or = 3 minutes
kap26 [50]

Answer:

150 seconds< 3 minutes

Step-by-step explanation:

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4 0
3 years ago
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Which of the following expressions would find 12 percent of 5?
qwelly [4]
12 percent of 5 You can find by
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4 0
3 years ago
The equation the quantity of x plus 20 over 2 = 3x represents when two tutoring services with different rate plans charge the sa
Inga [223]

None of the options give the same fees for a session of x hours.

Given,
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when two tutoring services with different rate plans charge the same fees for a session of x hours.

<h3>What is arithmetic?</h3>

In mathematics, it deals with numbers of operations according to the statements.

x + 20/2 = 3x
x + 10 = 3x

A) x= 10
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B) x=4
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C) x= -14
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D) x=-17
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Here, none of the options give the same fees for a session of x hours.

Thus, none of the options give the same fees for a session of x hours.

Learn more about arithmetic here:

brainly.com/question/14753192

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8 0
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