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Pavlova-9 [17]
3 years ago
15

10x-15=-8x+21 solve this equation

Mathematics
1 answer:
Natasha2012 [34]3 years ago
8 0

Answer:

x=2

Step-by-step explanation:

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Please help me!!!! I will mark brainlist.
Misha Larkins [42]

Answer:

angle 1 =135

Step-by-step explanation:

it is 180 degrees total. We know that there are two angles that have a ratio to 3:1. So, assign x to 2. Since 1 = 3x, we do 3x+x =180

4x=180

x=45 or angle 2

180-45=135 or angle 1

Multiply angle 2 by 3 to check if its correct

8 0
2 years ago
Read 2 more answers
How is -27 a rational number
gayaneshka [121]

Answer:

see explanation

Step-by-step explanation:

A rational number can be expressed in the form

\frac{a}{b} where a and b are integers

Given

- 27 = \frac{-27}{1} ← in rational form

Thus - 27 is a rational number

7 0
3 years ago
Read 2 more answers
Algebra 2 <br> If you can explain it would help so much
Elodia [21]
Never seen the exact thing before
But if I’m not mistaken
a should be the number before x^2
b is before x
c is the last number
including the negative sign!
4 0
2 years ago
Plzzzzzzzzz help me whoever gets it right gets brainliest! how many potatoes and how many corrots
DochEvi [55]
The answer is 10 carrots and 5 potatoes.
8 0
3 years ago
Can someone please please answer this and explain it? my math teacher didn’t :( will give brainliest points for explanation!!! (
AnnZ [28]

Answer:

QR = 1

Step-by-step explanation:

PR = PQ + QR

PR = x + 19

PQ = 9

So now put what you know in the equation above.

PR = 9 + 2x + 19

PR also equals x + 19

so

x + 19 = 9 + 2x + 19

x + 19 = 2x + 28

19 - 28 + x = 2x

-9 + x = 2x

-9 = 2x - x

-9 = x

===================

QR = 2x + 19

QR = 2*-9 + 19

QR = -18 + 19

QR = 1

This really is kind of a nasty question. You don't expect to get a minus number of x.

8 0
2 years ago
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