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
kodGreya [7K]
3 years ago
7

The perimeter of a rectangle is 256 inches. how long are the sides if the length exceeds the width by 16 inches? mark lets x rep

resent the width of the rectangle and writes the equation 2x + 2(x + 16) = 256. solving for x, the width of the rectangle is 56 60 68
Mathematics
2 answers:
mr Goodwill [35]3 years ago
5 0

Answer:

X=56

Step-by-step explanation:

Elodia [21]3 years ago
3 0
We have 2x + 2x + 32 = 256;
Then 4x + 32 = 256;
4x = 256-32;
4x = 224;
x = 224/4;
x = 56;
The width is 2·56 = 112 inches;
The length is 112 + 16 = 128 inches;
You might be interested in
What is 1/2 x 2/3 x 3/4
inna [77]
       
I believe the answer is 0.25



4 0
3 years ago
Read 2 more answers
An automobile manufacturer has given its van a 59.5 miles/gallon (MPG) rating. An independent testing firm has been contracted t
LekaFEV [45]

Answer:

The pvalue of the test is 0.0124 < 0.1, which means that there is sufficient evidence at the 0.1 level to support the testing firm's claim.

Step-by-step explanation:

An automobile manufacturer has given its van a 59.5 miles/gallon (MPG) rating. An independent testing firm has been contracted to test the actual MPG for this van since it is believed that the van has an incorrect manufacturer's MPG rating:

At the null hypothesis, we test if the mean is the same, that is:

H_0: \mu = 59.5

At the alternate hypothesis, we test that it is different, that is:

H_a: \mu \neq 59.5

The test statistic is:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

In which X is the sample mean, \mu is the value tested at the null hypothesis, \sigma is the standard deviation and n is the size of the sample.

59.5 is tested at the null hypothesis:

This means that \mu = 59.5

After testing 250 vans, they found a mean MPG of 59.2. Assume the population standard deviation is known to be 1.9.

This means that n = 250, X = 59.2, \sigma = 1.9

Value of the test statistic:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

z = \frac{59.2 - 59.5}{\frac{1.9}{\sqrt{250}}}

z = -2.5

Pvalue of the test and decision:

The pvalue of the test is the probability of finding a mean that differs from 59.5 by at least 0.3, which is P(|Z|>-2.5), which is 2 multiplied by the pvalue of Z = -2.5.

Looking at the z-table, Z = -2.5 has a pvalue of 0.0062

2*0.0062 = 0.0124

The pvalue of the test is 0.0124 < 0.1, which means that there is sufficient evidence at the 0.1 level to support the testing firm's claim.

5 0
3 years ago
A toy company is making a miniature model of a dump truck. The steering wheel on the toy car that is 0.6 cm corresponds to the s
pentagon [3]
I used the 55.2 and the 0.6 to find a ratio of 92:1, so for every cm of toy car steering wheel there are 92 cm of real truck steering wheel. so using this ratio i times the 3.5cm of the toy car windshield by the 92, this gave me the answer of 322cm, which theoretically is the answer of this equation. 322cm.
6 0
3 years ago
What measurement is equal to 20 liters in milliliters?
kakasveta [241]
Litersx1000=mls
20x1000=20000mls
5 0
3 years ago
Read 2 more answers
Look at the comparison below3/10 is this comparison statement correct
bixtya [17]
What statement? 3/10

?
3 0
4 years ago
Read 2 more answers
Other questions:
  • PLZZZZZZZZZZZZZZZZZZZZZZ HELP!
    5·1 answer
  • A leaking faucet drips into a bucket . the faucet drips at a constant rate the level of water in the bucket rises 8 inches in 12
    12·1 answer
  • Find the number of sides a polygon has if the sum of the measures of its interior angles is four times the sum of the measures o
    13·1 answer
  • Can someone please answer this for me ? thanks
    13·2 answers
  • Each lap around the park is 0.58 mile. Jessica walked 3.25 laps around the park. How many miles did Jessica walk around the park
    8·1 answer
  • PLEASE HELP ME DO THIS MATH PLEASE I BEG OF YOU!!!!
    13·1 answer
  • Please can someone give me the answers to all three of them. THIS IS TIMED PLEASE HELP ME QUICK! (30 points)
    11·1 answer
  • Triangle angle sum theorem <br> What is the value of p?
    8·1 answer
  • A bedroom door in the house has the same
    8·1 answer
  • What is the answer 3x - 3 &lt; 9
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!