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aliya0001 [1]
4 years ago
14

A drug trial is testing the effectiveness of two drugs. If 50 patients are given Drug A, 20 patients are given Drug B, and 100 p

atients are given a placebo, what is the probability that a patient will NOT be given a placebo?
A. 5/17
B. 10/17
C.2/17
D.7/17
Mathematics
1 answer:
Vsevolod [243]4 years ago
6 0
So, to find the answer you'd first add up how many patients you have:
20+50+100 = 170.
In a fraction your total would go on the bottom. Then you'd take how many patients are taking a real drug, which is represented by 20+50 = 70. This number would go on top.

So, the probability of a patient NOT getting a placebo is 70/170. Simplified would be 7/17. 

The answer is D. 7/17.
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Answer:

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Step-by-step explanation:

If f(x)=6x+2 and you are asked to find f(x+3), then you just replace all the x's in f(x)=6x+2 with (x+3).

Doing this gives you:

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f(x+3)=6(x+3)+2

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3 years ago
Answer all please ❤️
IRINA_888 [86]
1: 0.5 and 50%

2: .2 and 20%

3: .75 and 75%

10: (1/10) and 10%

11: (3/5) and 60%

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What should be the first step in solving 13 y − 14 = 42?
AveGali [126]

Answer:

The first step should be adding 14 to both sides of the equation.

Step-by-step explanation:

14 must be added on both sides of the equation to get 13y by itself. The ultimate goal is to get y by itself if we are solving for y.

Once 14 is added on both sides, you'll get:

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