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choli [55]
3 years ago
8

What is the answer to this math problem......

Mathematics
2 answers:
Anna [14]3 years ago
5 0
The answer is 20 pounds.
Sladkaya [172]3 years ago
4 0
If each ream is 32 ounces, and there are 10 reams in the case, then we need to multiply 32x10.
We can simplify the problem though, so let's do that!
30x10=300
2x10=20
300+20=320.
Now, there are 16 ounces in a pound. SO. We need to divide 320 by 16.
320÷16=20
we know because 32÷16=2
so we add a zero onto our answer since we added a zero onto 32.
In conclusion, the answer is 20lbs

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The expression on (3+i)(4+5i) can be written in form a+bi, where a and b are integers. What are the values of a and b? (Show you
gregori [183]

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2 years ago
Charlie guesses that his dog weighs 34. 5 pounds. The dog actually weighs 32. 7 pounds. What is the percent error in Charlie’s g
expeople1 [14]

Percent error is the amount of error to actual value, in percent. The percent error in Charlie’s guess is approximately: Option D: 5.5%

<h3>How to calculate the percent error?</h3>

Suppose the actual value and the estimated values after the measurement are obtained. Then we have:

Error = Actual value - Estimated value

To calculate percent error, we will measure how much percent of actual value, the error is, in the estimated value.

\rm Percent \: Error = |\dfrac{Error}{Actual value}|\times 100 \\\\Percent \: Error = | \dfrac{\text{(Actual Value - Estimated Value)}}{Actual value}|\times 100 \\

(here |x| is such that it makes x non negative, thus, |-5| = 5, and |5| = 5)

For the given case, it is specified that:

Actual weight of dog = 32.7 pounds

Guessed weight of dog, by Charlie : 34.5 pounds.

Error = 32.7 - 34.5 = -1.8 pounds

Thus, percent error in Charlie's guess is calculated as:

\text{Percent Error} = |\dfrac{-1.8}{32.7}| \times 100 \approx 5.5\%

Hence, the percent error in Charlie’s guess is obtained approximately is given by: Option D: 5.5%

Learn more about percent error here:

brainly.com/question/25749180

3 0
2 years ago
Lines l and m are parallel
soldi70 [24.7K]

Answer:

  • m∠ABC = 15°

Step-by-step explanation:

<u>Given</u>

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Add two more parallel lines passing through points C and D.

Consider alternate interior angles formed by the four parallel lines.

<u>The angles between the two middle lines are equal to:</u>

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<u>Substitute values and solve for x:</u>

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  • 3x - x = 55 - 25
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m∠ABC = 15°

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nirvana33 [79]

Answer:

You only have to sort (numbers with numbers and variables with variables) then do the operations (+/-).

Step-by-step explanation:

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