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krok68 [10]
3 years ago
8

On a cold February morning, the radiator fluid in Stanley’s car is -18 degrees When the engine is running, the temperature goes

up 4.5 degrees per minute. Approximately how long will it take before the radiator fluid temperature reaches 60 degrees ?
Mathematics
1 answer:
Rasek [7]3 years ago
3 0

Remark

This is an arithmetic progression. You have the first and last terms and the difference.

Givens

a = - 18

L = 60

d = 4.5        

Equation

L = a + (n - 1)d

Solve

60 = -18 + (n - 1) * 4.5   Add 18 to both side

60 + 18 = (n - 1) * 4.5      

78 = (n - 1) * 4.5           Divide both sides by 4.5

78/4.5 = n - 1

17.3333 = n - 1             Add 1 to both  sides.

18.3333 = n

Conclusion

It will that 18 1/3 or 18.33333 minutes to get the from -18 to 60 degrees.


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Please help me with this question
Pavlova-9 [17]

Answer:

71

Step-by-step explanation:

The mean is the average. There are two ways to do this question shown.

1- You can calculate the mean by adding them all up and find the current mean. You can then add the numbers and then divide again-

88+100+76+92+83=439.

439/5=87.8

The current average is 87.8. Now, you can add and divide again.

439+71=510. 510/6=85.

You now have the answer. However, you might want to check again.

439+76=515

515/6=85.833....3

It is more than 85, so the answer is 71.

2- Find out how much more all the numbers are than the smallest number.

First, I'll organize it.

-76, 83, 88, 92, 100-

The smallest number is 76, so subtract 76 from each.

0, 7, 12, 16, 24 added up together is 59.

59/5=11.8

76+11.8=87.8

That also gives you that the average is 87.8.

You can then see how much or less the number is than the average and then add.

71 is five LESS than the average, so it's -5.

54/6=9.

9+76=85.

Thus, 71

6 0
3 years ago
3.084 in expanded form with decimals
MArishka [77]
3.000
0.000
0.080
0.004
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3 years ago
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Which statements are correct about the table? Check all that apply.
vlada-n [284]

Answer:

Add 42 to itself from h to get the corresponding answer at d

42+42=84

84+42=126

126+42=168

168+42=210

7 0
2 years ago
A cylindrical cattle water storage tank is 14 feet in diameter and 8 feet tall. About how many cubic feet of water is needed to
natka813 [3]

Answer:

0

Step-by-step explanation:

4 0
3 years ago
Nevermind, the question has been solved.
san4es73 [151]

okay.... I guess??? lol

7 0
3 years ago
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