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2 years ago

Y=mx+b solve for x.

Mathematics

2 answers:

Rus_ich [418]2 years ago

7 0

You can't solve for x. Y=mx+b is slope intercept form and is used to graph equations

Svetlanka [38]2 years ago

4 0

Equation of a straight line with slope m and y intercept b is: y=mx+b. To find the x intercept,solve this equation by taking y =0. So, it will become mx +b=0, mx=-c, and finally x=-c/m. I hope this helped!

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X=16-4y. systems of equations 3x+4y=8 substitution

alina1380 [7]

Answer:

x=-4 y=5

Step-by-step explanation:

Rewrite equations:

x=−4y+16;3x+4y=8

Step: Solvex=−4y+16for x:

x=−4y+16

Step: Substitute−4y+16forxin3x+4y=8:

3x+4y=8

3(−4y+16)+4y=8

−8y+48=8(Simplify both sides of the equation)

−8y+48+−48=8+−48(Add -48 to both sides)

−8y=−40

−8y

−8

−40

−8

(Divide both sides by -8)

y=5

Step: Substitute5foryinx=−4y+16:

x=−4y+16

x=(−4)(5)+16

x=−4(Simplify both sides of the equation)

Answer:

x=−4 and y=5

6 0

1 year ago

Answer this and give an explanation.

Margarita [4]

Answer:

3/9

Step-by-step explanation:

1/3*3

4 0

2 years ago

Read 2 more answers

Solutions for x2 −22x+121=49

slamgirl [31]

The answer is d I think

5 0

2 years ago

40 is what percent of 160?

mash [69]

Answer:

Step-by-step explanation:

percentage calculator 40 is what percent of 160=25;)

4 0

2 years ago

Read 2 more answers

A standard piece of paper is 0.05 mm thick. Let's imagine taking a piece of paper and folding the paper in half multiple times.

tatyana61 [14]

Answer:

(a) $g(n)=0.05\cdot 2^n$

(b) $g^{-1}(n)=\log_{2}20g(n)$

Step-by-step explanation:

Part A

The paper's thickness = 0.05mm

When the paper is folded, its width doubles (increases by 100%).

The thickness of the paper grows exponentially and can be modeled by the function:

$g(n)=0.05(1+100\%)^n\\\\g(n)=0.05\cdot 2^n$

Part B

$g(n)=0.05\cdot 2^n\\2^n=\dfrac{g(n)}{0.05}\\ 2^n=20g(n)\\$Changing to logarithm form, we have:\\\log_{2}20g(n)=n\\$Therefore:\\g^{-1}(n)=\log_{2}20g(n)$

Part C

If the thickness of the paper, g(n)=384,472,300,000 mm

Then:

$g^{-1}(n)=\log_{2}20g(n)\\g^{-1}(n)=\log_{2}20\times 384,472,300,000\\=\dfrac{\log 20\times 384,472,300,000}{\log 2} \\g^{-1}(n)=42.8 \approx 43\\n=43$

You must fold the paper 43 times to make the folded paper have a thickness that is the same as the distance from the earth to the moon.

3 0

2 years ago