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lesya [120]
3 years ago
7

What is 74.625 rounded to the nearest tenth?

Mathematics
2 answers:
lesya [120]3 years ago
8 0

74.6 is the answer. You only round up if the previous number is 5 or bigger

butalik [34]3 years ago
4 0

Answer: 74.6

Step-by-step explanation:

To the nearest tenth means having one figure after the decimal point. Since the figure after the tenth is less than 5, we round down.

I hope this helps.

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If caffeine reduces by about 10% per hour, how many hours h does it take for the amount of caffeine in a body to
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Answer:

7 hours

Step-by-step explanation:

Since, the final amount of caffeine formula would be,

A=P(1-r)^t

Where,

P = Initial value,

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t = number of periods,

Here, r = 10% = 0.10, t = h, A = \frac{P}{2}

\frac{P}{2}=P(1-0.10)^h

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Taking log both sides,

log 0.5 = log 0.90^h

log 0.5 = h log 0.90

\implies h = \frac{log 0.5}{log 0.9}=6.57881347896\approx 7

Hence, after 7 hours the amount of caffeine in a body to  reduce by half.

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3 years ago
I'm not the best a geometry so any help would be great
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Answer:

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Step-by-step explanation:

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3 years ago
Samantha and Mia each left Julia’s house at the same time. Mia walked north at 7 kilometers per hour. Samantha ran west at 11 ki
RoseWind [281]
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4 0
4 years ago
Read 2 more answers
Solve for x: |1/3-x/4|=7/12
ozzi

Your answer is x={-1, 11/3}

4 0
3 years ago
What is the value of f^-1(21)
elixir [45]

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Thus, f(5) = 2(5) + 11 = 21; (5,21) is a point on the graph of f(x).

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