2 years ago

Find the value of x that makes the equation true. 12x=4(x+2)+20

Mathematics

1 answer:

d1i1m1o1n [39]2 years ago

3 0

Answer:

7/2

Step-by-step explanation:

12x=4(x+2)+20

12x=4x+8+20

12x-4x=8+20

8x=28

x=28/8

simplify

x=7/2

You might be interested in

PLEASE ANWSER CORRECTLY!! I WILL MARK BRAINIEST!!!

Greeley [361]

Z=82 vertical or opposite angle theorem
15x-7 + 82=180 supplementary angles theorem
so 15x +75 =180
15x=180-75
x=105/15
x=7

7 0

2 years ago

Rectangular prism with a length, width, and height of 1/5 cm, 2/5 cm, 3/5 and cm, respectively

Bezzdna [24]

3/4 with the main number divide it

5 0

3 years ago

What are the x-intercepts of the graph below of the function below y=x^2+2x-15

KatRina [158]

Answer is A............

5 0

2 years ago

Read 2 more answers

Divide 3x ^ 3 + 7x ^ 2 - 8x + 48 by x + 4

Akimi4 [234]

Answer: 3x 3 +7x 2 +40x+4

Step-by-step explanation: Hope that helps

8 0

2 years ago

A population of values has a normal distribution with μ = 158.9 μ = 158.9 and σ = 90.4 σ = 90.4 . You intend to draw a random sa

rosijanka [135]

Answer:

$P_{39}=133.68$

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 158.9

Standard Deviation, σ = 90.4

We are given that the distribution is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

We have to find the value of x such that the probability is 0.39

$P( X < x) = P( z < \displaystyle\frac{x - 158.9}{90.4})=0.39$

Calculation the value from standard normal z table, we have,

$\displaystyle\frac{x - 158.9}{90.4} = -0.279\\\\x = 133.6784\approx 133.68$

$P_{39}=133.68$

133.68 separates the bottom 39% means from the top 61% means.

7 0

3 years ago