All categories

4 years ago

10 = 3x – 8 what is this

Mathematics

2 answers:

Margaret [11]4 years ago

8 0

Answer:

Answer is below

Step-by-step explanation:

10=3x-8

always remember to flip the equation

3x-8=10

Add 8 to both sides

3x-8(+8)=10(+8)

3x=18

Divide both sides by 3

3x/3=18/3

x=6

WITCHER [35]4 years ago

5 0

Answer:

Step-by-step explanation:

Step 1:

10 = 3x - 8 Equation

Step 2:

18 = 3x Add 8 on both sides

Step 3:

18 ÷ 3 Divide

Answer:

x = 6

Hope This Helps :)

You might be interested in

In which choice do all three points lie on the

spin [16.1K]

Answer:

D (1, 2), (2, 4), (4,8)

Step-by-step explanation:

Points lying on the same line:

If three points lie on the same line, the change in y has to be always the same when x changes by 1.

А. (0, 1), (-1, 3), (1, 3)

(-1,3) to (0,1): x changes by 1, y by -2

(0,1) to (1,3): x changes by 1, y by 2

So these points are not on the same line.

B. (4, 2), (2, 1), (4, -2)

Two values for y when x = 4, so not on the same straight line.

C (0, 0), (8, 0), (0, 8)

Two values for y when x = 0, so not on the same straight line.

D (1, 2), (2, 4), (4,8)

Here, when x changed by 1(from 1 to 2), y changed by 2.

When x changed by 2(from 2 to 4), y changed by 2*2 = 4.

So these points are on a straight line, and D is the correct answer.

4 0

3 years ago

The height, h, in feet of a rock above the ground is given by the equation h = -16t^2 + 24t + 16, where t is the time in seconds

boyakko [2]

The rock will hit the ground at 2 seconds.

Explanation:

Given that the height, h, in feet of a rock above the ground is given by the equation $h=-16t^2+24t+16$ , where t is the time in seconds after the rock is thrown.

We need to determine the time at which the rock will hit the ground.

To determine the time, let us equate the height h = 0 in the equation $h=-16t^2+24t+16$ , we get,

$0=-16t^2+24t+16$

Switch sides, we have,

$-16 t^{2}+24 t+16=0$

Let us solve the equation using the quadratic formula.

Thus, we have,

$t=\frac{-24 \pm \sqrt{24^{2}-4(-16) 16}}{2(-16)}$

Simplifying, we get,

$t=\frac{-24 \pm \sqrt{576+1024}}{-32}$

$t=\frac{-24 \pm \sqrt{1600}}{-32}$

$t=\frac{-24 \pm 40}{-32}$

Hence, the two values of t are

$t=\frac{-24 + 40}{-32}$ and $t=\frac{-24 -40}{-32}$

Simplifying the values, we get,

$t=\frac{16}{-32}$ and $t=\frac{-64}{-32}$

Dividing, we get,

$t=-\frac{1}{2}$ and $t=2$

Since, t cannot negative values, we have,

$t=2$

Thus, the rock will hit the ground at 2 seconds.

8 0

3 years ago

Choose Yes or No to tell if the number 3.23 will make each equation true.

Free_Kalibri [48]

Answer:

yes

Step-by-step explanation:

i think its right

5 0

3 years ago

Read 2 more answers

URGENT WILL MARK BRAINLIEST! 50 POINTS! Find the value of x so that f(x) = 3.

Bumek [7]

Answer:

x = 2

Step-by-step explanation:

1. f(x) basically means y. So f(x) = 3 translates to y=3.

2. At y=3, you can see it meets at x=2.

3 0

2 years ago

42. A cylinder has a base of 36 π in² and a volume of 432π in³. What is the surface area of the same cylinder? *

faust18 [17]

Answer:

216π in²

Step-by-step explanation:

Base area = π × r²

36 π = π × r²

r² = 36

r = 6

Volume = base area × height

432 π = 36 π × height

height = 12

Surface area:

2 × π × r × (r + h)

2π × 6 × (6 + 12)

216π

8 0

3 years ago