1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
exis [7]
3 years ago
7

Three multiplied by the sum of 4 and a number is the same as 12 more than the number. Find the number.

Mathematics
1 answer:
Bess [88]3 years ago
7 0

Answer:

3(4+n) = 12+n is an equation that could be used.

12n = 12+n

11n = 12

n= 1+1/11

Step-by-step explanation:

You might be interested in
41 coins, consisting of nickels and quarters, have a total value of $4.65. How many coins of each kind are there?
slavikrds [6]

Answer:

4

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
It’s 11:50 and I’m stuck in this question
Vika [28.1K]

Answer:

$7.50

Step-by-step explanation:

3/4's of 60 is 15 and half of 15 is 7.50

5 0
3 years ago
The weekly salaries of sociologists in the United States are normally distributed and have a known population standard deviation
Lostsunrise [7]

Answer:

ME =z_{\alpha/2} \frac{\sigma}{\sqrt{n}}

The confidence level is 0.98 and the significance is \alpha=1-0.98 =0.02 and \alpha/2 =0.01 and the critical value using the table is:

z_{\alpha/2}= 2.326

And replacing we got:

ME=2.326 \frac{425}{\sqrt{22}}= 210.760\ approx 210.76

Step-by-step explanation:

For this case we have the following info given:

\sigma = 425 represent the population deviation

n =22 the sample size

\bar X =1520 represent the sample mean

We want to find the margin of error for the confidence interval for the population mean and we know that is given by:

ME =z_{\alpha/2} \frac{\sigma}{\sqrt{n}}

The confidence level is 0.98 and the significance is \alpha=1-0.98 =0.02 and \alpha/2 =0.01 and the critical value using the table is:

z_{\alpha/2}= 2.326

And replacing we got:

ME=2.326 \frac{425}{\sqrt{22}}= 210.760\ approx 210.76

3 0
3 years ago
4. The use of wind power is growing rapidly. Global wind power generating
Ivan
In 1980, wind turbines in Europe generated about 5 gigawatt-hours of energy. Over the next 15 years, the amount of energy increased about 59% (each year). How many gigawatt-hours were generated
6 0
3 years ago
Advanced conversions:
san4es73 [151]

Answer:

Step-by-step explanation:

1). ∵ 1 L = 1000 ml

   ∴ 4 L = 4000 ml

2). ∵ 1 cm = 10 mm

    ∴ 5 cm = 50 mm

3). ∵ 1 mg = 0.1 cg

    ∴ 5 mg = 0.5 cg

4). ∵ 1 ml = 0.001 L

    ∴ 25 ml = 0.025 L

5). ∵ 1 gm = 1000 mg

    ∴ 0.125 gm = 25 mg

6). ∵ 1 ml = 0.001 L

    ∴ 570 ml = 0.57 L

7). ∵ 1 mm = 0.1 cm

    ∴ 135 mm = 13.5 cm

8). ∵ 1 mg = 0.001 g

    ∴ 1820 mg = 1.82 g

9). ∵ 1 g = 100 cg

    ∴ 0.5 g = 50 cg

10). ∵ 1 ml = 0.001 L

     ∴ 0.2385 ml = 0.0002385 L

6 0
3 years ago
Other questions:
  • How do you get 6,300,00 using the digits 1-7 to creat a seven-digit number that can be rounded to 6,300,000?
    14·1 answer
  • One year Hank had the lowest ERA (earned-run average, mean number of runs yielded per nine innings pitched) of any male pitcher
    9·1 answer
  • Consider x2 + 10x + _____. How many unit tiles need to be added to complete the square and form a perfect square trinomial expre
    14·2 answers
  • How do I simplify the following: v+8+1-8v
    8·1 answer
  • Help with expressing a graph as an inequality ?
    10·1 answer
  • If A(2, x) , B(x, 8) and AB = 3√2 cm, then x = ?
    11·1 answer
  • If you get 76% on a 50 question test how many questions did you get wrong?
    14·2 answers
  • Write the equation of a line in point-slope form that goes through the points (4, 4) and (8, 6)
    14·1 answer
  • Find the sum or difference. Write all fractions in simplest form and improper fractions as mixed numbers. 1\2+9/10+2/3​
    9·1 answer
  • John has two apples, he gives Jane 251. How many apples does John have? Please help 2nd grade is so hard.
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!