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shepuryov [24]
3 years ago
8

Can someone please help me with this? this is solving systems of linear equations algebraically​

Mathematics
1 answer:
Nezavi [6.7K]3 years ago
6 0

Answer:

a=12

b=9

Step-by-step explanation:

3/4 of 12 is 9 and 9 plus 12 is 21

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What number is 90% of 350?
tatyana61 [14]

Answer:

315

Step-by-step explanation:

10% of 350 is 35 so 35 times 9 would equal <u><em>315</em></u>

7 0
3 years ago
Oblicz. Pamiętaj o kolejności wykonywania działań.<br> 4,01 – 1,08 : (2,9 + 0,7) =
Artist 52 [7]

Answer:

3,71

Step-by-step explanation:

4,01 - 1,08 ÷ 3,6

4,01 - 0,3

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7 0
3 years ago
If the function graphed is f(x), find f(1)
mihalych1998 [28]

Answer:

f(1)=-4

Step-by-step explanation:

f(1) means what is the y in the point on the curve of f so that x=1.

So I go to x=1 on the x-axis.

So I go right one from the origin.

I notice the curve is below the x-axis so I go down to the curve til I get to the curve.

Once I get to the curve, I look at the y-axis to tell what that number is for that ordered pair there at x=1.

That y-value is -4.

A graph/picture is probably worth a lot more to you then my words.

Other examples:

f(2)=-5

f(3)=0

f(-1)=4

f(-2)=5

f(-3)=0

3 0
4 years ago
Figure WXYZ is a parallelogram.
sergiy2304 [10]

see the attached figure to better understand the problem

we know that

In a parallelogram opposite angles are congruent, and consecutive angles are supplementary

So

in this problem

∠Y=125°

∠W=∠Y

∠W=125°

∠Z=∠X

∠Y+∠Z=180°

∠Z=180-125

∠Z=55°

∠X=∠Z

∠X=55°

therefore

the answer is

∠Y=125°

∠W=125°

∠X=55°

∠Z=55°

8 0
3 years ago
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3 years ago
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