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Irina-Kira [14]
3 years ago
9

Find the value of x and y

Mathematics
1 answer:
Zolol [24]3 years ago
7 0
2x=9-y
3y=x-8

y=9-2x
3(9-2x)=x-8

27-6x=x-8
35=7x
x=5

2*5=9-y
10=9-y
y-1
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Please help ! Please help!
riadik2000 [5.3K]

Answer:

The answer is 75 degrees.

Step-by-step explanation:

The explanation is that the the supplementary angle to 80 is 100 since a straight line has an angle of 180, now the 100 degree angle is congruent to the angle x + 25 which means that x + 25 is equal to 100 so x is 75

6 0
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Help please i know its alot but i am in danger of failing for the year if i fail this test :(
Lena [83]

Answer:

(20.)  D is the correct answer

(19.) A is correct

(18.) A is correct

(17.) D is correct

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Step-by-step explanation:

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3 0
2 years ago
What is the answer for |x|=9
Maru [420]

The absolute value |x| returns the "positive version" of a number.

In other words, if the number is positive, it remains positive; if the number is negative, it changes sign.

So, if we want |x|=9, we want the "positive version" of x to be 9.

This can happen in two ways: if x is already 9, then its absolute value is still nine. If instead x=-9, its positive value will be 9 again.

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8 0
3 years ago
What is 7 5/12- 2 2/3
DIA [1.3K]

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-13/12

Step-by-step explanation:

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6 0
3 years ago
If using the method of completing the square to solve the quadratic equation x2 - 6x – 7 = 0, which number would have to be adde
Vanyuwa [196]

Answer:

(-3)^2

Step-by-step explanation:

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Then, take half of b, and square it. Giving you x^2 - 6x +(-3)^2 = 7

The answer will be (-3)^2 for this question, but this is not the full solution.

Hope this helped. Good luck on the rest!

3 0
2 years ago
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