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alexandr1967 [171]
3 years ago
12

What is the x intercept of 2x + 4y = 20

Mathematics
2 answers:
Anna71 [15]3 years ago
8 0

Answer:

x = 10

Step-by-step explanation:

To find x-intercept/zero, substitute y = 0.

2x + 4 \times 0 = 20

Any expression multiplied by 0 equals 0.

2x + 0 = 20

When adding or subtracting 0, the quantify does not change.

2x = 20

Divide both side of the equation by 2:

x = 10

zhuklara [117]3 years ago
4 0

Answer:

10

Step-by-step explanation:

x- intercept is where the equation intersect the x-axis. So, at x-axis y = 0

2x + 4*0 = 20

           2x = 20

Divide both sides by 2

2x /2 = 20/2

x = 10

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Can anyone please help me with this? You need to find the equation to solve for x, the value of x, and the value of each angle m
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1. 3x+21 = 6x-60\\or, 6x-3x = 21+60 [Being~corresponding~angles]\\or, 3x = 81\\or, x = 27.\\Equations: 3x+21=6x-60\\Value ~of ~x = 27\\Angle ~measure = (3x+21), (6x-60) = 3(27)+21,6(27)-60 = 102,102\\

2. 12x - 18 = 8x+10 [Being~vertically~opposite~angles]\\or, 12x - 8x = 18+10\\or, 4x = 28\\or, x = 7\\Equations: 12x-18 = 8x+10\\Value~ of~ x: 7\\Angle ~measure: (12x-18),(8x+10) = 66,66\\

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3 0
3 years ago
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Eddi Din [679]
Answer: The fraction 301/900
Note: I'm assuming the 4's continue on forever

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

Work Shown:

I'm going to assume that the 4s go on forever. I'll represent this with three dots after the last 4 like so
0.334444...

Now let x = 0.334444...

Multiply both sides by 100
x = 0.334444...
100x = 100*(0.334444...)
100x = 33.444444...

And repeat with 1000
x = 0.334444...
1000x = 1000*(0.334444...)
1000x = 334.444444...

Then subtract and solve for x. Notice how the decimal parts line up and cancel
1000x-100x = (334.444444...) - (33.444444...)
1000x-100x = (334+0.444444...) - (33+0.444444...)
1000x-100x = 334+0.444444... - 33 - 0.444444...
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900x = 334 - 33
900x = 301
x = 301/900
6 0
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