MATHEMATICS MIDDLE SCHOOL

How do I solve
PV = nRT for T

Answers

Answer 1
Answer:

Answer:

PV+=+nRT divide both sides by nR

PV/NR

Step-by-step explanation:

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You put $5,000 in a simple interest account at a bank. You will earn $1,200 in just 4 years. What is the annual interest rate for the account?

Answers

1200 = 5000*4r
1200/20000 = r = .06 0r 6%

What is the means-to-MAD ratio of the two data sets, expressed as a decimal?Data set Mean Mean absolute deviation (MAD)
1 10.7 2.4
2 13.7 2.5

Answers

The correct answer for the question that is being presented above is this one: 

To find the mean of a set, add up all of the numbers and divide by how many numbers you have. For the first set:
u = (10.7+2.4)/2 = 6.55
For the second set:
u = (13.7 + 2.5)/2 = 8.1

To find the mean absolute deviation, (MAD) find the mean of the distances of each number from the mean.
First set:
MAD = (|10.7-6.55| + |2.4-6.55|)/2 = 4.15
Second set:
MAD = (|13.7-8.1| + |2.5-8.1|)/2 = 5.6

The means-to-MAD ratio is simply that, divide one by the other and that's it.
For the first set:
6.55 / 4.15 = 1.57831325
For the second set:
8.1 / 5.6 = 1.44642857

For ΔABC, the measure in degrees of angles A, B, and C are 60, 55, and x + 20 respectively. What is the value of x?

Answers

Answer:

Step-by-step explanation:

All sides of a triangle equel 180 degrees, so 180-60-55=115. 180-115 is 65. 65-20-45. Hope this works!
Ok x = 45 because 180-60-55-20 = 45

What is the absolute value of 8.75

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the answer is 8.75 cause absolute value is just how amny units a number is from zero
To find an absolute value you ask yourself "how far away is it from 0?" And that amount is the absolute value.

Draw each pair of line?

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an x or a cross_____________

What mathematical operation does a fraction represent?

Answers

It represent division
A fraction represents division
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