The answer is: [C]: " 3.200 * 10⁷ h " .
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Explanation:
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19.2 * 10⁸ min * (1 hr / 60 min) ;
= (19.2 * 10⁸)
_______________ ;
60
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Divide EACH SIDE of the fraction by "10" ; to get:
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(19.2 * 10⁷)
_______________ ;
6
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⇒ (19.2) ÷ (6) = 3.2 ; so rewrite as:
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3.2 * 10⁷ ; which corresponds with:
Answer choice: [C]: " 3.200 * 10⁷ h " .
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Below is the solution:
<span>8t + 5p = 220
5t + p = 112
From the second equation:
p = 112 - 5t
Replace into first:
8t + 5(112 - 5t) = 220
t = 20
p = 112 - 5t = 112 - 100 = 12
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<span>11 2/4 times 8 1/2 = 97 3/4
You can simplify 2/4 to 1/2.
I converted the fractions to decimals. (11.5 and 8.5 then multiplied to get 97.75)
Then reverted it back to a mixed number.
:)</span>
Answer:
B
Step-by-step explanation:
Have a wonderful day hope this helps
