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guapka [62]
2 years ago
11

Write the sentence as a proportion.

Mathematics
1 answer:
Katarina [22]2 years ago
7 0
The proportion would be something like 1.5/10 = .75/5
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Can someone help me with this. Will give you brainliest.
ipn [44]

Yes it is,


it is reflection like a mirror, but, it copy's the position and moves it upward  

5 0
3 years ago
The new total is 60%, but the sales tax is 5% of the bill. how much is the salestax?
Nataly_w [17]

Answer:

Sales tax is 8.33 % of new total

Step-by-step explanation:

Let

Your bill =1000

New total 60%=1000*60/100=600

5% sale tax on whole bill price =1000*5/100=50

To deduct 5% sale tax in 60% of new total the % are=50/600=0.0833*100=8.33%

So,

Sale tax is 8.33% of new total 60%.

6 0
3 years ago
The standard deviation for actuary salaries has a standard deviation of $36,730 . You collect a simple random sample of n=36 sal
Yanka [14]

Using the z-distribution, it is found that the lower limit of the 95% confidence interval is of $99,002.

<h3>What is a z-distribution confidence interval?</h3>

The confidence interval is:

\overline{x} \pm z\frac{\sigma}{\sqrt{n}}

In which:

  • \overline{x} is the sample mean.
  • z is the critical value.
  • n is the sample size.
  • \sigma is the standard deviation for the population.

In this problem, we have a 95% confidence level, hence\alpha = 0.95, z is the value of Z that has a p-value of \frac{1+0.95}{2} = 0.975, so the critical value is z = 1.96.

The other parameters are given as follows:

\overline{x} = 111000, \sigma = 36730, n = 36

Hence, the lower bound of the interval is:

\overline{x} - z\frac{\sigma}{\sqrt{n}} = 111000 - 1.96\frac{36730}{\sqrt{36}} = 99002

The lower limit of the 95% confidence interval is of $99,002.

More can be learned about the z-distribution at brainly.com/question/25890103

#SPJ1

8 0
2 years ago
The Newtown Telephone Company advertises that if you use their​ 10-10 service, you will always pay only 9c per​ minute, no matte
lord [1]

Answer:

y = 9x cents

y = (36 + 3x) cents

Step-by-step explanation:

Given that:

Newtown telephone company :

Fee per minute = 9c

Tyrus company :

Fee per minute = 3c

Connection fee = 36c

Cost equation :

y = total cost for each phone call:

x = minutes phone call last ;

Newton Company :

y = (fee per minute * minute phone call last)

y = 9 * x

y = 9x cents

Tyrus Company:

y = (connection fee + (fee per minute * minute phone call last))

y = (36 + (3 * x))

y = (36 + 3x) cents

8 0
3 years ago
Select all ratios equivalent to 7:10
serg [7]

Answer: ratio:14:20    work:7*2=14   10*2=20       ratio:21:30    work: 7*3=21   10*3=30       ratio:28:40  work:7*8=28     10*4=40        

Step-by-step explanation: Just multiply the number on the left and right side of the ration by the same number to get an equivalent ratio. I gave some examples above. I hoped this helped.

3 0
2 years ago
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