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Aneli [31]
3 years ago
15

The contractor needs another chain that is 50% longer than the first chain. Write an expression he can use to find the length of

this chain. Explain how you know your expression is correct.
Someone help me please
Mathematics
1 answer:
Marianna [84]3 years ago
6 0
It is nine because the   the the faction of 67859celcius is put in twos byn
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You go out to eat with your family. The subtotal on your bill is $45.90. You must pay a 8% sales tax AND you would like to leave
Eddi Din [679]

Answer:

The answer is 57.83

Step-by-step explanation:

find 8% of 45.90 and add 18% of 45.90 and add them together.

8%*45.90=3.67

18%*45.90=8.26

Add, 45.90+8.26+3.67

The final price of your meal is 57.83

7 0
4 years ago
The scatter plot shows the number of passengers at a major airport over a​ 15-year period from the year 2000. About how many pas
Sliva [168]

Answer:

The answer is 65

Step-by-step explanation:

​First, determine the​ x-value that corresponds to the given year.

Since x corresponds to the number of years since​ 2000, the year 2009 corresponds to an​ x-value of 9.

​Next, find the​ y-value on the trend line that corresponds to an​ x-value of 9. The problem statement has been updated to show lines traced from the​ x-value of 9 to the trend line and then to the​ y-value.

Notice that the point​ (9,70) appears to lie on the trend line.

​Therefore, in​ 2009, approximately 70 million passengers travelled through the airport.

Question is complete.

4 0
3 years ago
An arts academy requires there to be 3 teachers for every 75 students and 6 tutors for every 72 students. How many tutors does t
suter [353]
5 teachers and 10 tutors because we can make a proportion:

3/75=x/120, and when you cross multiply and solve for x you will get 4.8, but there can't be 4.8 teachers so we can say 5 teachers (round). Do the same for tutors: 6/72=x/120, x would equal 10.

Hope this helps!
4 0
3 years ago
Read 2 more answers
A company selling light bulbs claims in its advertisements that its light bulbs’ average life is 1000 hours. In fact, the life s
Ket [755]

Answer:

The probability that a randomly chosen light bulb will last less than 900 hours is 0.1587.

Step-by-step explanation:

The life span of these light bulbs is normally distributed with a mean of 1000 hours and a standard deviation of 100 hours

Mean = \mu = 1000 hours

Standard deviation =\sigma = 100 hours

We are supposed to find the probability that a randomly chosen light bulb will last less than 900 hours.i.e. P(x<900)

So, Z=\frac{x-\mu}{\sigma}

Z=\frac{900-1000}{100}

Z=-1

P(x<900)=P(z<-1)=0.1587

Hence the probability that a randomly chosen light bulb will last less than 900 hours is 0.1587.

4 0
3 years ago
[NEED HELP]
Alinara [238K]

Answer:

1. vertical-line test

2.y=x

3.x

4.domain

Step-by-step explanation:

I just did it on edg and it’s right.

3 0
4 years ago
Read 2 more answers
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