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3 years ago

4n+12=4 What does n equal?

Mathematics

1 answer:

solong [7]3 years ago

3 0

Answer:

n = -2

Step-by-step explanation:

4n + 12 = 4

Subtract 12 from both sides.

4n = -8

Divide both sides by 4.

n = -2

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Please help! Find x if 2(x+1)=x+5

Digiron [165]

Answer:

x=3

Step-by-step explanation:

2(x+1)=x+5

Use the distributive property to multiply 2 by x+1.

2x+2=x+5

Subtract x from both sides.

2x+2−x=5

Combine 2x and −x to get x.

x+2=5

Subtract 2 from both sides.

x=5−2

Subtract 2 from 5 to get 3.

x=3

7 0

3 years ago

Read 2 more answers

If a line crosses the y-axis at (0, 1) and has a slope of 4/5, what is the equation of the line?

ElenaW [278]

Using the one point format, for a slope m, and point (x₁, y₁)

y - y₁ = m(x - x₁)

Slope, m = (4/5) point (x₁, y₁) = (0, 1), x₁ = 0, y₁ = 1

y - 1 = (4/5)*(x - 0)

y - 1 = (4/5)x

y - 1 = 4x / 5

5*(y - 1) = 4x

5*y - 5*1 = 4x

5y - 5 = 4x

5y = 4x + 5 is the equation of the line.

3 0

3 years ago

Read 2 more answers

Find the equation of the line with y-intercept -2 and passing though the point (2,5). Show your work. What is the equation of a

mihalych1998 [28]

equation of a line with y intercept of neg.2 is y=mx-2

you could use pint slope[y-y1=m(x-x1)], but i preffer slope intercept form [y=mx+b]

5=m2-2

move 2 to the other side

7=m2

divide both sides by 2

3.5=m

so, the slope is 3.5

equation for a line that passes through point (2,5) with a y intercept of -2 is y=3.5x-2

the equation of a perpendicular line to the line y=3.5x-2 has a slope that is negative reciprical of 3.5

we keep the everything on y=3.5x-2 same except the slope.

negative reciprical slope of 3.5 is -

$- \frac{10}{35}$

simplify

$- \frac{2}{7}$

so, the equation of a line perpendicular to the first one is y=-2/7x-2

5 0

4 years ago

Pls help me calculate the total area of compound shapes?!?!?

natali 33 [55]

Easy
The total area of the first shape is 42 and the total area of the second shape is 21.

7 0

3 years ago

I’m a 6th grader that needs help

NemiM [27]

Answer:

61 miles

Step-by-step explanation:

1 / 6 = 1/6

1/6 * 366 = 61

1/6 of 366 is 61

We can check our answer by multiplying 61 and 6 since we divided 366 and 6

61 * 6 = 366

Now that we have checked our answer, we can comfirm that 366 divided by 6 is 61 therefore, our answer is 61 miles in 1 hour

7 0

3 years ago