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
emmainna [20.7K]
3 years ago
11

=0.56x−0.25n=0.20x−0.03

Mathematics
1 answer:
katovenus [111]3 years ago
7 0

Given:

m=0.56x-0.25

n=0.20x-0.03

To find:

The sum of m and n.

Solution:

We have,

m=0.56x-0.25

n=0.20x-0.03

The sum of m and n is:

m+n=(0.56x-0.25)+(0.20x-0.03)

Combining the like terms, we get

m+n=(0.56x+0.20x)+(-0.25-0.03)

m+n=(0.76x)+(-0.28)

m+n=0.76x-0.28

Therefore, the sum of m and n is m+n=0.76x-0.28.

You might be interested in
7.1.35-T Question Help You are the operations manager for an airline and you are considering a higher fare level for passengers
shusha [124]

Answer:

You must survey 784 air passengers.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

The margin of error is:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

95% confidence level

So \alpha = 0.05, z is the value of Z that has a pvalue of 1 - \frac{0.05}{2} = 0.975, so Z = 1.96.

Assume that nothing is known about the percentage of passengers who prefer aisle seats.

This means that \pi = 0.5, which is when the largest sample size will be needed.

Within 3.5 percentage points of the true population percentage.

We have to find n for which M = 0.035. So

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.035 = 1.96\sqrt{\frac{0.5*0.5}{n}}

0.035\sqrt{n} = 1.96*0.5

\sqrt{n} = \frac{1.96*0.5}{0.035}

(\sqrt{n})^2 = (\frac{1.96*0.5}{0.035})^2

n = 784

You must survey 784 air passengers.

6 0
3 years ago
What is the answer to 3 + 4 1/10
Ymorist [56]
First you can change 3 to 10/10 so that they can have the same denominator. Now, since you do that the number is now 2. 

Now, do 10/10-1/10=9/10.
After do 2-4=-2.
So, your final answer is -2 9/10.
4 0
4 years ago
Steven has a rectangular rug with a perimeter of 16 feet. The width of the rug is 5 feet. What is the length of the rug?
boyakko [2]
\boxed{\boxed{\text{Perimeter = 2(Length + Width)}}}

Given that the perimeter is 16ft and width is 5 ft,
16 = 2( Length + 5)

Distribute 2:
16 = 2Length + 10

Take away 10 from both sides:
2Length = 16 - 10

Evaluate the right hand side:
2Length = 6

Divide by 2 on both sides:
Length = 3

\boxed{\boxed{\text{Answer: Length = 3 ft}}}

8 0
4 years ago
−4x+60<72 or 14x+11<−31 solve for x
gulaghasi [49]
The answer to your question is x = 8
5 0
3 years ago
Read 2 more answers
8 1/3 of what number is 50.5
maks197457 [2]
I hope this helps you

6 0
3 years ago
Other questions:
  • Find the length of the unknown side. Round your answer to the nearest tenth.
    5·2 answers
  • The grill was regularly priced at $58, but Jared had a coupon for 25% off. How much money did Jared save by using his coupon?
    14·2 answers
  • Can someone help me with this geometry question asap?
    10·1 answer
  • Louis is saving money for a car, he invests $1,200 in an account that pays an interest rate of 7.5%. How many years will it take
    7·1 answer
  • Need someone good at mathhhhg
    7·1 answer
  • There are 110 calroies per 177.4 grams of cereal X. find how many calories are in 245.5 grams kf this cereal
    11·1 answer
  • What is the missing term?​
    9·2 answers
  • Hello I really need help please explain the process ty
    10·1 answer
  • Helpppppppppppppppppppppppppppp
    8·2 answers
  • What is the median of this data set?<br><br> {16, 16, 16, 19, 20, 22, 23, 24, 24}
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!