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Kipish [7]
3 years ago
11

Write an expression that is equivalent to ( 3+14)+27.

Mathematics
1 answer:
TEA [102]3 years ago
5 0
17+27
simplify the parenthesis
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in a recent season NASCAR driver Jimmie Johnson won 6 of the 36 total races held to the nearest thousand ,find the part of races
castortr0y [4]
So, the fraction of races that he won was:

\frac{6}{36} : you need ti divide the number of occurrences by the number of possibilities.

We can simplify this:
\frac{1}{6}.

When we write it in decimals until the closest place, it's:

0.167 or 16.667%


5 0
3 years ago
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A drug used to relieve anxiety and nervousness has a half-life of 16 hours. if a doctor prescribes one 2.8-milligram every 24 ho
dlinn [17]

After 24 hours, 35.4% of the initial dosage remains on the body.

<h3>What percentage of the last dosage remains?</h3>

The exponential decay is written as:

f(x) = A*e^{-k*x}

Where A is the initial value, in this case 2.8mg.

k is the constant of decay, given by the logarithm of 2 over the half life, in this case, is:

k = ln(2)/16h

Replacing all that in the above formula, and evaluating in x = 24 hours we get:

f(24h) = 2.8mg*e^{-24h*ln(2)/16h} = 0.9899 mg

The percentage of the initial dosage that remains is:

P = \frac{0.9899mg}{2.8mg}*100\% = 35.4\%

If you want to learn more about exponential decays:

brainly.com/question/11464095

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8 0
2 years ago
What is the sum of you in 4 times T = 29
vredina [299]

4 times 29=116 and are you a boy or not a boy

5 0
3 years ago
Read 2 more answers
If one minute on the clock =6 degrees 12 minutes =
Minchanka [31]
72° since it’s 6 degrees per minute you can do 6x12 and that will get you 72°
5 0
3 years ago
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The diagram compares the ratio of girls in the chorus to boys in the chorus what is the ratio of girls to boys if there are 40 s
Gala2k [10]
Ratio of girls to boys is 3:2....added = 5.....this means that 3/5 of the total students are girls and 2/5 of the total students are boys.

so if there are 50 students...
3/5(50) = 150/5 = 30 girls
2/5(50) = 100/5 = 20 boys
7 0
2 years ago
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