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velikii [3]
3 years ago
14

The average adult has approximately 1.25 gallons of blood. Blood donors typically donate 1 pint of blood. How many donations wou

ld it take until someone donated all of his or her blood? Even though that's not possible! Hint: refer to the conversion graphic right to determine how many pints there are in 1 gallon.
Mathematics
2 answers:
viktelen [127]3 years ago
7 0
10 pints.
We know that there are 8 pints in a gallon. We have one gallon so we already have 8 pints.
Then there is a .25 gallon, this is equivalent to one-fourth of a gallon. So 1/4 times 8 is 2.
8 + 2 is 10 pints.
ICE Princess25 [194]3 years ago
5 0
10 pints is the answer
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Answer:

Part 1)

1) Sylvia' process was incorrect. In her last step, when she multiplied 0.88 by 10, she also need to divide exponent by 10.

2) Dylan is perfectly correct.

3) Ethan's process was also incorrect. Instead of subtracting the exponents, he added them.

Part 2)

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Step-by-step explanation:

Part 1)

We want to simplify the expression:

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\displaystyle =0.88\times 10^{-11-7}=0.88\times 10^{-18}

In scientific notation, the coefficient is always between 1 or 10.

So, we can multiply 0.88 by 10. To keep the equality, we need to divide 10⁻¹⁸ by 10. Hence:

\displaystyle =0.88(10)\times \frac{10^{-18}}{10}

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Simplify. Thus:

\displaystyle \frac{3.61\times 10^{-11}}{4.1\times 10^7} = 8.8\times 10^{-19}

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1) Sylvia' process was incorrect. In her last step, when she multiplied 0.88 by 10, she also need to divide exponent by 10.

2) Dylan is perfectly correct.

3) Ethan's process was also incorrect. Instead of subtracting the exponents, he added them.

Part 2)

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729 is indeed 3⁶. However, when Skyler acquired (3⁶)ˣ = 9, he made the error of setting the exponent on the left to the value on the right.

Both Robert and Kevin are correct, having set each exponent equal to each other after their bases are equivalent and solving for <em>x</em>.

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