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Mandarinka [93]
3 years ago
7

Can i get help on question 7 please?

Mathematics
1 answer:
CaHeK987 [17]3 years ago
3 0

Do you have notes so I can look at them to help you? Cause I pretty good at math but I need the notes.


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Ellen says that 1 2/5 equal 5/7. Is she correct? Explain.
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Step-by-step explanation:

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Full-time ph.d. students receive an average of $12,837 per year with a standard deviation of $3000. find the probability that th
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The admission at the movies is $5 for children and $10 for adults. The total amount collected was
sesenic [268]

Answer:

Number of children, x= 400

Number of adults, y = 100

Step-by-step explanation:

Let the number of children be x

Let the number of  adults be y

Given : Total number of people,  x + y = 500  --------(1)

           Total amount collected, 5x + 10y = 3000  ---------(2)

(1) => y = 500 - x

Substitute y in (2) : 5x + 10(500 - x) = 3000

                             5x + 5000 - 10x = 3000

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Substitute x in (1) : 400 + y = 500

                                      y = 500 - 400

                                      y = 100

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3 years ago
Which of these is greatest number that rounds to 9?
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