The following are the durations in minutes of a sample of long-distance phone calls madewithin the continental united states reported by one long-distance carrier. time (in minutes) frequency 15 but less than 25 0.0825 but less than 35 0.2435 but less than 45 0.0945 but less than 55 0.3555 but less than 65 0.1565 but less than 75 0.0875 or more 0.01a) if 100 calls were randomly sampled, how many calls lasted between 10 and 45(b) if 1000 calls were randomly sampled, how many calls lasted 65 minutes or longer? (c) form the cumulative percentage distribution.(d) form the ogive (cumulative percentage ) from the graph in (d), what percentage of calls lasted less than 77 minutes?

3/4 ÷ 3/4

step-by-step explanation:

basically divide any proper fraction with itself to fit the criteria.

so if we are using 3/4, then:

3/4 ÷ 3/4 = 1

so 1 is the quotient.

and the numerators for both these fractions is 3.   and if we divide the numerators:

3 ÷ 3 = 1

we see that quotient is equal to our original quotient as well.

is this part of a question or something

3. (5x + 1) - (-10x + 6)

simplify the answer choice. combine like terms. remember to distribute the negative to the terms inside the second parenthesis. also remember that two negatives = one positive, and one of each sign = negative.

- (-10x + 6) = + 10x - 6

simplify. combine like terms:

5x + 1 + 10x - 6

5x + 10x + 1 - 6

15x - 5

∴ it is your answer

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