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const2013
1 month ago
13

A supplier delivers an order for 20 electric toothbrushes to a store. by accident, three of the electric toothbrushes are defect

ive. what is the probability that the first two electric toothbrushes sold will be returned because they are defective?
Mathematics
1 answer:
Leona [12.6K]1 month ago
3 0
Three out of twenty toothbrushes are defective, indicating an initial probability of picking one that is defective on the first attempt is 3/20. On the second attempt, because one defective toothbrush has already been removed, the remaining defective ones are 2 out of 19. To find the likelihood of both selections being defective, we multiply the two probabilities. Thus, (3/20)*(2/19) = 6/380, which simplifies to approximately 0.0157, or around 1.6%.
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Step-by-step explanation:

Let 'P' represent the principal amount

'R' will stand for the interest rate

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P = $1000

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We can compute the simple interest using,

Interest = (P x R x T) / 100

= (1000 x 3 x 4) / 100

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= $120

Thus, the simple interest over 4 years totals $120.

Total amount = P + Interest

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= $1120

Consequently, the account will have $1120 after 4 years.

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Answer:

The slope for members is half as steep when compared to the slope for non-members. Both graphs cross at 600 tokens and $120. Prior to this intersection, non-members have lower costs than members. Beyond the 600 tokens mark, members will incur lower costs than non-members.

Step-by-step explanation:

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2 months ago
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Solve for x in this equation: a - bx = cx+d
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Answer:

Step1: Take away (cx+d) from both sides of the initial equation

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Detailed explanation:

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a-bx=cx+d

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Rearranging this yields

a-b-bx-cx=0

(a-b)-x(b+c)=0 (combining similar terms)

-x(b+c)=-(a-d)

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The correct choice is D). On the experiment's first day, five individuals received the email. 
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