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Delicious77 [7]
3 years ago
6

3.The snow starts at a depth of 10 inches and melts to 2 inches over the span of 4 hours. Determine the rate of change over the

interval 0≤x≤4A.4 inches per hour
B.2 inches per hour

C.8 inches per hour

D.12 inch per hour

4.The population in a neighborhood increased from 120 to 156 people from 1990 to 1994. Find the rate of change over the interval 1990≤x≤1994.

A.1/9 of a person per year

B.9 people per year

C.36 people per year

D.4 people per year

5.The temperature increases from 60 degrees Fahrenheit to 84 degrees Fahrenheit from 8 in the morning to 12 in the afternoon. Find the rate of change over the interval 8≤x≤12

A.16 of a degree Fahrenheit per hour

B.4 degrees Fahrenheit per hour

C.6 degrees Fahrenheit per hour

D.24 degrees Fahrenheit per hour

If you answer, answer with all of the questions listed thank you.
Mathematics
1 answer:
kap26 [50]3 years ago
4 0

3. B: 2 inches

4. C: 9 people

5. B: 6 degrees

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The sum of two numbers is 43 and the difference is 13 what are the numbers
Zinaida [17]

Answer:  1. 28      2. 25    

Hope this helps!

Didn't know if you wanted the explanation or not, so sorry. But I can put an explanation if you need it.

6 0
3 years ago
This is urgent I need help!
Nata [24]

Answer:

Step-by-step explanation:

1. Write an expression to show how to calculate the number of buses needed. Make sure to include parenthesis to show what should be done first since order of operations is important.

(9*25)+4+(2*4)=237 (total number of people going to the museum

Each bus,excluding the driver,holds 44 people

237/44 = 5.3863636363.......

2. How many buses will be needed?

 6 buses are needed

3. Why must the answer to the problem be a whole number?

Buses cannot be divided in fractions It should be or 5 buse or 6

But 5 buses are not enough

4. Why shouldn't you round the answer the usual way?

Even when rounded it is still a decimal and buses need to be counted by whole number

5. Can your answer be classified as a rational number? Explain why or why not.

6 is a rational number (whole number)

5.38636363.......is rational ( repeating decimal

8 0
2 years ago
What was the percent increase of China's
Rom4ik [11]

The percentage increase China's population from 1970 to 1995 is: 56.25%.

<h3>How to Calculate Percentage Increase?</h3>

Percentage increase = (Final Value - Original Value)/Original value × 100.

Given the following:

Original value = 0.8 billion

Final Value = 1.25 billion

Final Value - Original Value = 1.25 - 0.8

Final Value - Original Value = 0.45

Percentage increase = 0.45/0.8 × 100 = 56.25%.

Learn more about percentage increase on:

brainly.com/question/14129404

#SPJ1

4 0
2 years ago
How many square meters are there in a floor that is 9 meters long by 14 meters wide?
antoniya [11.8K]

Answer:

126 sq. meters

Step-by-step explanation:

A = lw

= 9(14)

= 126 sq. meter

7 0
2 years ago
x squared plus y squared equals 80. My daughter has to work out what x and y are. I have worked it out by trial and error, but k
olya-2409 [2.1K]


you Need to think of 2 square numbers that add up to make 80

answer:

64 + 16

this means that x  = 8 and y = 4

because of the square roots

or

y = 4

and

x = 8

7 0
3 years ago
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