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
sladkih [1.3K]
1 year ago
8

I can’t figure this out. Help!

Mathematics
2 answers:
Roman55 [17]1 year ago
7 0

Answer:

x is about 6.857 or 48/7

Step-by-step explanation:

to do this we cross multiply

42/18=16/x

42x=18(16)

42x=288

x=6.857

Hopes this helps please mark brainliest

77julia77 [94]1 year ago
3 0

Answer:

Your answer should be x = \frac{48}{7}.

Hope this helps.

You might be interested in
If the rate of a person walking is 2.4 miles in 10 minutes. How far can he walk in 90 minutes hours?
Gre4nikov [31]

Answer:

21.6

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
A psychologist collects data on the time, w, in minutes, people walk each day and their scores, t ,on a stress test. The scores
Svetach [21]
The answer is the last one D that is the correct answer 
good lock!!!

7 0
3 years ago
If a 200 N net force acts on a 500 grams car, what will the acceleration of the car be? ​
ladessa [460]

Answer:

The acceleration of the car will be 400 m/s².

Step-by-step explanation:

The acceleration of the car can be found using Newton second law:

F = ma

Where:

F: is the net force = 200 N

m: is the mass = 500 g

a: is the acceleration =?

Then, the acceleration will be:

a = \frac{F}{m} = \frac{200 N}{500 g*\frac{1 kg}{1000 g}} = 400 m/s^{2}  

Therefore, the acceleration of the car will be 400 m/s².

I hope it helps you!

4 0
3 years ago
Find the minimum sample size needed to estimate the percentage of Democrats who have a sibling. Use a 0.1 margin of error, use a
Brums [2.3K]

Answer:

The minimum sample size is  n  =135

Step-by-step explanation:

From the question we are told that

   The confidence interval is ( lower \ limit  = \  0.44,\ \ \   upper \ limit  = \ 0.51)

    The margin of error is  E =  0.1

   

Generally the sample  proportion can be mathematically evaluated as

     \r p = \frac{ upper \ limit  + lower \ limit }{2}

    \r p = \frac{ 0.51 + 0.44}{2}

    \r p = 0.475

Given that the confidence level is  98% then the level of significance can be mathematically evaluated as

         \alpha = 100 -  98

        \alpha = 2\%

        \alpha =0.02

Next we obtain the critical value of  \frac{\alpha }{2} from the normal distribution table  

   The value is

        Z_{\frac{\alpha }{2} } =  2.33

Generally the minimum sample size is evaluated as

      n  =[ \frac { Z_{\frac{\alpha }{2} }}{E} ]^2 *  \r p (1- \r p )

     n  =[ \frac { 2.33}{0.1} ]^2 *  0.475(1- 0.475 )

     n  =135

6 0
3 years ago
Which is the correct calculation for the volume of the prism?'
Akimi4 [234]

Step-by-step explanation:

V = l.W.H

3(5)(4) = 60 units

3 0
3 years ago
Other questions:
  • Combining like terms with negative coefficients and distribution <br> -5(3x+10)-2(4x-5) ?
    11·1 answer
  • -4 (w+1) -24 Please help guys!
    12·2 answers
  • Please help me with this question
    13·1 answer
  • A picture frame is 9 inches long and 6 inches wide. It can display a picture 6 inches long and 4 inches wide. What is the area o
    9·1 answer
  • Solve for the angle. Round to the nearest tenth.<br> COS X =<br> 9/12
    14·1 answer
  • Did I do this right? Pls help thx
    10·2 answers
  • I need help! please and thank you
    6·1 answer
  • What is the common difference -30,70,170,270
    12·1 answer
  • What is -2(x+1) simplified
    9·1 answer
  • I don’t wanna fail if you know the answer pls help :(
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!