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
Anna [14]
3 years ago
8

Please help and show work​

Mathematics
1 answer:
melisa1 [442]3 years ago
4 0

Answer:

first one is simnple cross multiply and divide

12*7=4x

84=4x

x=21

2nd same process but more steps

7x=5(x+8)

7x=5x+40

7x-5x=40

2x=40

x=20

Step-by-step explanation:

You might be interested in
What is the slope for (4,7) and (-1,4)?​
harina [27]

<em>The slope is 7/4</em>

<em>This means that for every 7 that Y changes, X changes by 4. Also, the problem would not go through the origin of a graph.</em>

<em>Hope this helps and have a nice day.</em>

<em>-R3TR0 Z3R0 (復古零) </em>

7 0
3 years ago
In a 30°- 60° - 90° right triangle, the longer leg has a length of 10 square root of 3. what is the length of the shorter leg?
shutvik [7]
In a 30°-60°-90° triangle, the longer leg is √3 times the shorter leg. In your triangle, ...
  the shorter leg is 10.
3 0
3 years ago
Find the slope of the line.<br><br> The slope is ___
dimulka [17.4K]
The slope would be 2/2
3 0
3 years ago
Read 2 more answers
Sixty-five randomly selected car salespersons were asked the number of cars they generally sell in one week. Fourteen people ans
Bond [772]

If Sixty-five randomly selected car salespersons were asked the number of cars they generally sell in one week. Then the mean of the sample is 3.75.

<h3>What is Mean?</h3>

The average of a group of numbers is simply defined as the mean. In statistics, the mean is regarded as one of the indicators of central tendency.

Sixty-five randomly selected car salespersons were asked the number of cars they generally sell in one week.

Fourteen people answered that they generally sell two cars; nineteen generally sell three cars; twelve generally sell four cars; nine generally sell five cars; eleven generally sell six cars.

Then the mean of the sample will be

\rm Mean = \dfrac{1}{N} \times \Sigma _{i}   \ \ x_if_i

Then the table is given below.

Then we have

\rm Mean = \dfrac{1}{65} \times (244)\\\\\\Mean = 3.7538\\\\Mean \approx 3.75

More about the mean link is given below.

brainly.com/question/521501

#SPJ1

5 0
2 years ago
Can someone please help me!
Alexeev081 [22]

Answer:

7)no

Step-by-step explanation:

When you plug in the numbers

3(2)-0=-6

6-0=6

6 does not = -6

5 0
3 years ago
Other questions:
  • Write down the third term in the sequence given by: T (n) =2n^2
    5·1 answer
  • Which of the following is a solution to the following system of equations?
    10·1 answer
  • An electric cord was cut into three pieces in the ratio 5:3:7. The difference in the length between the longest piece and the sh
    10·2 answers
  • In 2017, the population of a city is 11500, and is increasing exponentially at a rate of 3.1% per year (a) What will the populat
    11·1 answer
  • Arianna bought 16 postcards during 4 days of vacation. How many days will Arianna have to spend on vacation before she will have
    7·1 answer
  • A variable needs to be eliminated to solve the system of equations below. Choose the
    9·1 answer
  • a man 1.30 m tall is on a top of a building. he observed a car on the road at an angle of 60 degrees if the building is 30 m hig
    9·1 answer
  • Which figure is a radius of F?<br><br> CE<br><br> AB<br><br> CD<br><br> FD
    7·1 answer
  • Factorise:<br> 27x^3 - 1/216 -9/2x^2 +1/4x
    5·1 answer
  • A ride-sharing company charges a pick-up fee of $3.50 plus a charge of $4.00 per mile. Write an equation that represents the sit
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!