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True [87]
2 years ago
6

20.57 is 42.5% of ______.

Mathematics
1 answer:
Vaselesa [24]2 years ago
7 0
Percent is parts out o 100
42.5%=42.5/100=0.425

'of' means multiply

20.57 is 42.5% of ? means
20.57=0.425 times ?
divide both sides by 0.245
48.4=?

20.57 is 42.5% of <u>48.4</u>
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1 year ago
Read 2 more answers
In 1982 John Hinckley was on trial, accused of having attempted to kill the then US President Ronald Reagan. Hinckley was found
Nadya [2.5K]

Answer:

O.186 or 18.6%

Step-by-step explanation:

Let s = event of schizophrenia

B = brain atrophy

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P(s) = probability of those suffering from schizophrenia = 1.5% = 0.015

P(B|S) = probability of brain atrophy = 30% = 0.30

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P(B|S') = 2% = 0.02

Probability Hinckley suffered from schizophrenia

= P(S|B) = P(B|S)P(S)/P(B|S)P(S)+P(B|S')P(S')

= (0.30x0.015)/(0.30)*(0.015)+(0.02)(0.985)

= 0.0045/0.0045+0.0197

= 0.0045/0.0242

= 0.185950

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a = b \times h \\  \\ a = 4 \times 2 \\  \\ a = 8 {m}^{2}

7 0
2 years ago
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