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Alexxx [7]
3 years ago
7

If y=3 and 2x+4y=8 what does x equal?

Mathematics
1 answer:
Step2247 [10]3 years ago
7 0
If y equaled 3, then we would plug 3 into the y spot on the equation. Therefore it would be 2x+4(3)=8. Now just solve.

2x+4(3)=8
2x+12=8
2x-12=8-12
2x=-4
2x/2=-4/2
X=-2

Hope this helped!
-Twixx
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Helpppp idkkkkk thisssss
Daniel [21]
Yea, it’s 180cm^3

V=bh
V= 20cm • 9cm
V=180cm^3

Have a good day :)
4 0
3 years ago
A twelve-foot ladder is leaning against a wall. If the ladder reaches ft high on the wall, what is the angle the ladder forms wi
hichkok12 [17]

This question is incomplete.

Complete Question

A twelve-foot ladder is leaning against a wall. If the ladder reaches eight ft high on the wall, what is the angle the ladder forms with the ground to the nearest degree?*

Answer:

42°

Step-by-step explanation:

From the question, the diagram that is formed is a right angle triangle.

To solve for this, we would be using the trigonometric function of Sine.

sin θ = Opposite side/ Hypotenuse

From the question, we are told that:

12 foot ladder is leaning against a wall = Hypotenuse

The ladder reaches 8ft high on the wall = Opposite side.

Hence,

sin θ = 8ft/12ft

θ = arc sin (8ft/12ft)

= 41.810314896

Approximately to the nearest degree

θ = 42°

Therefore, the angle the ladder forms with the ground to the nearest degree is 42°

3 0
3 years ago
Which equations are in standard form? Check all that apply y = 2x + 5 2x + 3y = –6 –4x + 3y = 12 y = x – 9 x + 3 = 6 x – y = 5 5
Gnesinka [82]
The right chose is -9x+3= the others are not hope this helped 

6 0
3 years ago
Read 2 more answers
James Has twO girls and his friend jEnnie has to girls how many girls do they have together
vodka [1.7K]

Answer:

4

Step-by-step explanation:

total no. of girls James have = 2

total no. of girls Jennie have = 2

Now,

total no. of girls both have

= 2 + 2 = 4

5 0
2 years ago
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dolphi86 [110]

Answer:

8

Step-by-step explanation:

24/3=8

3 times 8 equals 24

7 0
3 years ago
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