Nathan had an infection, and his doctor wanted him to take penicillin. Because Nathan’s father and paternal grandfather were allergic to penicillin, Nathan has a 75% chance of having the same allergy. The doctor performed a skin test to see whether Nathan would react to it. The test is 98% accurate. What is the probability that Nathan is not allergic to penicillin and the test predicts it?0.005
0.015
0.245
0.735
Answers
Answer:
Option 3 is correct.
Step-by-step explanation:
Given that Nathan had an infection, and his doctor wanted him to take penicillin. Because Nathan’s father and paternal grandfather were allergic to penicillin, Nathan has a 75% chance of having the same allergy. The doctor performed a skin test to see whether Nathan would react to it. The test is 98% accurate.
we have to find the probability that Nathan is not allergic to penicillin and the test predicts it.
As, Nathan has a 75% chance of having the same allergy.
Hence, (100-75)%=25% chance of not having the same allergy.
Also the test predicts given
∴ Probability that Nathan is not allergic to penicillin and the test predicts it is =
=
Hence, Option 3 is correct.
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Step 1: If x represents the variable in the word problem above, explain what the variable should
represent.
Step 2: Write an equation to model the situation.
Step 3: Solve the equation and write your answer in sentence form. Show your work.
Answers
Answer:
x = the amount of money Jane had before she took out any
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x = 785
Step-by-step explanation:
Let x = the amount of money Jane had before she took out any
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x - 135 = 650
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D
Step-by-step explanation:
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Answers
15 is 2 1/2 of a number 6.
We need to find that 15 is 2 1/2 of what number.
What is the meaning of 'of' in maths?
In math, 'of' is also considered one of the arithmeticoperations which means multiplication within the brackets.
Let the unknown number be y.
Now, 2 1/2 of y=15
⇒5/2 ×y=15
⇒y=6
Therefore, 15 is 2 1/2 of 6.
To learn more about algebraic expressions visit:
#SPJ6
▪ Answer:
n = 6
▪ Step-by-step explanation:
n × 2 1/2 = 15
n × 5/2 = 15
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n = 30 ÷ 5
n = 6
Answers
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c. See below.
Step-by-step explanation:
a. C(x(h)) = C(30h) = 20(30h) + 500 = 600h + 500
b. C(8) = 600(8) + 500 = 5,300
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Answers
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