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Alexxx [7]
4 years ago
15

A student solved this problem and said the answer is 5\8 pounds.

Mathematics
2 answers:
DaniilM [7]4 years ago
8 0

Answer:

B. No, the answer is not reasonable. It should be a bit more than 1 1/2 pounds.

Step-by-step explanation:

We have been given that Gino has 3\frac{7}{8} pounds of grapes. He has 2\frac{1}{4} pounds of green grapes and the rest are red grapes. A student solved this problem and said the answer is \frac{5}{8} pounds.

Let us solve the given problem by subtracting 2\frac{1}{4} from 3\frac{7}{8}.

3\frac{7}{8}-2\frac{1}{4}

\frac{3*8+7}{8}-\frac{2*4+1}{4}

\frac{31}{8}-\frac{9}{4}

\frac{31}{8}-\frac{9*2}{4*2}

\frac{31}{8}-\frac{18}{8}

\frac{31-18}{8}

\frac{13}{8}

1\frac{5}{8}

Since 1\frac{5}{8} is greater than 1\frac{1}{2}, therefore, option B is the correct choice.

Helga [31]4 years ago
6 0
1 3/8 lbs. 2 1/2 = 2 4/8. (8/8 is 1 lb) 2 4/8 + 8/8 = 3 4/8 add 3/8 to equal 3 7/8. You have added 1 3/8 lb to 2 1/2 lb to make 3 7/8 lbs.
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trasher [3.6K]

Answer:

0.2305 = 23.05% probability that exactly 2 workers say yes.

Step-by-step explanation:

For each worker, there are only two possible outcomes. Either they say yes, or they say no. The probability of a worker saying yes is independent of any other worker, which means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

5% of workers in the US use public transportation to get to work.

This means that p = 0.05

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This means that n = 25

Find the probability that exactly 2 workers say yes.

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P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 2) = C_{25,2}.(0.05)^{2}.(0.95)^{23} = 0.2305

0.2305 = 23.05% probability that exactly 2 workers say yes.

4 0
3 years ago
Which equation shows the associative property of addition?
prohojiy [21]
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3 years ago
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boyakko [2]

Answer:

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Step-by-step explanation:

Given

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Required

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4 0
3 years ago
Easy points!!! Correct answer gets brainliest. :)
zzz [600]
Hello!

The correct answer is C. 2.5 To figure this out, we can multiply each answer choice by x, or (4, 8, 12).

Hope this helps! ☺♥


8 0
4 years ago
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