All categories

3 years ago

What is 2 (m+3) Pls i need help bad

Mathematics

1 answer:

snow_tiger [21]3 years ago

7 0

Answer:

$2 \times m + 2 \times 3 \\ 2m + 12 \\ 2m + 12 - 12 \\ 2m \\ 2m \div 2 \\ = m$

You might be interested in

The formula for the perimeter of a rectangle is P = 2 (1+w) solve for w.

max2010maxim [7]

$2(1+w)=P\ \ \ \ |\text{use distributive property}\\\\2+2w=P\ \ \ \ |-2\\\\2w=P-2\ \ \ \ |:2\\\\\boxed{w=\dfrac{P-2}{2}}$

5 0

3 years ago

Solve the equation: 5/6x - 10 = 1/3(x - 15)

Harlamova29_29 [7]

Answer:

X =10

Step-by-step explanation:

If you have a scientific calculator that can help you a lot.

I will upload a picture you can follow to solve this problem.

4 0

3 years ago

On a certain hot summers day , 293 people used the public swimming pool. Daily prices are $1.50 for children and $2.50 for adult

fredd [130]

C = children

A = adults

293 = c + a

1.50c + 2.50a = 676.50

We can use substitution to solve:

c + a = 293 subtract a to get c = 293 - a

Plug this into the second equation:

1.50(293 - a) + 2.50a = 676.50

439.5 - 1.50a + 2.50a = 676.50

439.5 + 1a = 676.50

a = 237

Substitute this into the first equation:

293 = c + 237

56 = c

8 0

4 years ago

SnackTime Foods produced 24,200,000 grams of popcorn last year, which was placed in 11-

likoan [24]

Answer:

2,200,000 :) give brainliest

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

In a random sample of 74 women at a company, the mean salary is $39,902 with a standard deviation of $3270 in a random sample of

ValentinkaMS [17]

The correct answer is the first choice, ($1818.30, $5077.70.)

To find this, we first find the z-score based on the confidence level:
Convert 95% to a decimal: 95%=95/100 = 0.95
Subtract from 1: 1-0.95 = 0.05
Divide by 2: 0.05/2 = 0.025
Subtract from 1: 1-0.025 = 0.975

Using a z-table (http://www.z-table.com) we see that this value is associated with a z-score of 1.96.

Next, we identify
$\overline{x_1}=39902; \overline{x_2}=36454; n_1=74; n_2=40; \sigma_1=3270; \sigma_2=4677$

Next we find
$(\overline{x_1}-\overline{x_2})=(39902-36454) = 3448$

Next we find
$\sqrt{\frac{\sigma_1^2}{n_1}+\frac{\sigma_2^2}{n_2}}
\\
\\=\sqrt{\frac{3270^2}{74}+\frac{4677^2}{40}}=\sqrt{\frac{10692900}{74}+\frac{21874329}{40}}
\\
\\=831.479$

Next, we multiply this value by z:
1.96(831.479) = 1629.70

The confidence interval is given by
$3448\pm1629.70
\\
\\=(3448-1629.70, 3448+1629.70)
\\
\\=(1818.30, 5077.70)$

5 0

4 years ago