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Arturiano [62]
3 years ago
14

Solve the system of equations x - 2y = 2 and

Mathematics
1 answer:
frosja888 [35]3 years ago
6 0
We solve X simultenously
x - 2y =2................equation 1
3x - 5y =9.............equation 2
find urself third equation frm dis two equations
x = 2+2y...........equation 3
SUB: 3 IN 2
3(2+2y)-5y =9
solve y
6+6y-5y=9
6y-5y=9-6
1y=3
divide both side by 1
therefore Y=3

SUB:Y=3 IN EQUATION 3
x=2+2(3)
x=8
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Need help. I suck at this area of maths
Gnoma [55]

Total billed amount of fridge including VAT = $480

Let us assume the price of the fridge before the VAT is added = $x.

20% of VAT is added.

20% of x is 0.20x.

Total amount = 480.

Let us set an equation to find the value of x.

<h3>x+0.20x = 480.</h3>

1.20x = 480.

Dividing both sides by 1.20, we get

1.20x/1.20 = 480/1.20

x= 400.

<h3>Therefore, $ 400 is the price of the fridge before the VAT added.</h3>
6 0
3 years ago
A factory that manufactures screws is performing a quality control experiment. Each object should have a length of no more than
atroni [7]

Answer:

Step-by-step explanation:

Ok

5 0
4 years ago
Which inequality is a true statement?
Shtirlitz [24]
None, the only correct answer is...

-2 > -12

... in negative integers, the smaller the magnitude the bigger it is.
8 0
4 years ago
Question 7: Find the value of x. The numbers below are in degrees.<br> 140<br> S<br> 50<br> 20
Lyrx [107]

Given:

A figure.

To find:

The value of x.

Solution:

Draw two parallel lines as shown in the below figure.

If a transversal line intersect two parallel lines, then alternate interior angles are same.

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d=b              (Alternate interior angle)           ...(i)

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d=50-20

d=30

Using (i), we get

b=30

If a transversal line intersect two parallel lines, then same sides interior angles are supplementary angles.

c+140=180

c=180-140

c=40

Now,

x=b+c

x=30+40

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Therefore, the value of x is 70.

8 0
3 years ago
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Anastasy [175]

Answer:

From the picture it looks like 1/3

Step-by-step explanation:

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Hope this helps!

6 0
3 years ago
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