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3 years ago

4x + 8 = 32 i need help btw i am in middle school

Mathematics

1 answer:

Mekhanik [1.2K]3 years ago

3 0

Answer:

x=6

Step-by-step explanation:

to solve this equation, we need to isolate the variable (x).

to do this we must subtract both sides by 8.

doing this we get:

4x=24

now we need to divide both sides by 4:

x=6

that's the answer!

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5(2x - 8) - 15 = 5<br><br> Show/Write the steps you would use to solve the equation.

natulia [17]

Answer:

x=6

Step-by-step explanation:

Solve for x:

5 (2 x - 8) - 15 = 5

5 (2 x - 8) = 10 x - 40:

10 x - 40 - 15 = 5

Grouping like terms, 10 x - 40 - 15 = 10 x + (-40 - 15):

10 x + (-40 - 15) = 5

-40 - 15 = -55:

10 x + -55 = 5

Add 55 to both sides:

10 x + (55 - 55) = 55 + 5

55 - 55 = 0:

10 x = 5 + 55

5 + 55 = 60:

10 x = 60

Divide both sides of 10 x = 60 by 10:

(10 x)/10 = 60/10

10/10 = 1:

x = 60/10

The gcd of 60 and 10 is 10, so 60/10 = (10×6)/(10×1) = 10/10×6 = 6:

Answer: |

| x = 6

3 0

3 years ago

What is the equation of the line that passes through point (4,12) and has a y-intercept of -2?

Georgia [21]

Option B:

The equation of a line is $y=\frac{7}{2}x-2$ .

Solution:

Given data:

Line passing through the point (4, 12).

y-intercept of the line = –2

The equation of a line in slope-intercept form is

y = mx + c

where m is the slope and c is the y-intercept.

c = –2

Substitute c = –2 in slope-intercept form.

y = mx – 2 – – – – (1)

To find m, substitute (4, 12) in the above equation.

12 = m(4) – 2

12 = 4m – 2

Add 2 on both sides of the equation.

14 = 4m

Divide by 2 on both sides of the equation.

$$\frac{14}{4}=m$

$$\frac{7}{2}=m$

Slope = $\frac{7}{2}$

Substitute m value in equation (1), we get

$$y=\frac{7}{2}x-2$

The equation of a line is $y=\frac{7}{2}x-2$ .

Hence Option B is the correct answer.

8 0

3 years ago

What is the slope intercept form of -1/2 and 1, -1/2 being the slope??

nevsk [136]

The slope-intercept form of the equation of a straight line is y=mx+b, where m is the slope and b is the y-coordinate of the y-intercept.

If the given slope is -1/2, then this equation becomes y = (-1/2)x + b.

You do not say that b=1.

But if we let b=1, then the equation becomes y = (-1/2)x + 1.

7 0

3 years ago

Consider the following function.f(x) = e3x2, a = 0, n = 3, 0 ? x ? 0.2(a) Approximate f by a Taylor polynomial with degree n at

bekas [8.4K]

Answer:

oof i havnt done that math in ages o-o

5 0

4 years ago

Read 2 more answers

Jude Enjoys Eating Potato Chips. He likes to place 3 chips together in a stack to make interesting flavours. If he only has one

frez [133]

Using the combination formula, it is found that he can make 4 different stacks.

The order in which the balls are selected is not important, as stated in the problem. hence the <em>combination formula</em> is used to solve this question. If the order was important, then the permutation formula would be used.

<h3>What is the combination formula?</h3>

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by:

$C_{n,x} = \frac{n!}{x!(n-x)!}$

In this problem, he has four flavors, and will choose three of them for the stacks, hence the number of different stacks is given as follows:

$C_{4,3} = \frac{4!}{3!1!} = 4$

He can make 4 different stacks.

More can be learned about the combination formula at brainly.com/question/25821700

#SPJ1

4 0

2 years ago