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jolli1 [7]
3 years ago
11

Lunch break: In a recent survey of 643 working Americans ages 25-34, the average weekly amount spent on lunch as $43.21 with sta

ndard deviation $2.95. The weekly amounts are approximately bell-shaped. Part: 0 / 30 of 3 Parts Complete Part 1 of 3 Your Answer is incorrect (a) Estimate the percentage of amounts that were less than $40.26. Round the answer to one decimal place. Approximately % of the amounts were less than $40.26.
Mathematics
1 answer:
EastWind [94]3 years ago
3 0

Answer:

107%

Step-by-step explanation:

Round up all possible algorithms

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Anyone know how to do this?? Help pls
monitta

Answer:

The correct answer is A. a = 2s - b - c

Step-by-step explanation:

First you multiply 2 on both sides and you will end up with 2s = a + b + c.

Then to isolate a you would subtract both b and c from both sides of the equation as well to end up with your answer of a = 2s - b - c.

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3 years ago
A number written in fraction form whose numerator or denominator is itself a fraction is called a complex fraction.
pickupchik [31]
<h3>Answer:</h3>

"complex"

<h3>Explanation:</h3>

The sentence you're to complete is a direct copy of the sentence at the beginning of the problem statement. Match the words and identify the one corresponding to the blank.

_____

<em>Comment on the example</em>

"Copy and paste" does not always work well on Brainly, especially when the characters being copied are not text characters. Many fractions get mangled in the process.

We suspect you intend ...

(1/3)/(4/7) = (1/3) ÷ (4/7)

In typeset form, this might be ...

\displaystyle\frac{\left(\frac{1}{3}\right)}{\left(\frac{4}{7}\right)}

___

Please note that the symbols "/" and "÷" and the word "over" are generally taken to mean exactly the same thing.* When math operations are involved in numerators or denominators, generally you need to enclose those numerators and denominators in parentheses.

1/3÷4/7 = 1/(3·4·7) = 1/84

(1/3)÷(4/7) = (1/3)·(7/4) = 7/12

___

* Some web sites treat them differently. Sometimes "÷" is taken to mean "the quantity everything that comes before the symbol '÷' divided by the quantity everything that comes after the symbol". Sometimes the word "over" is intended to mean the same thing. This usage for ÷ and "over" is non-standard, so it is best to use parentheses to clarify intent.

5 0
4 years ago
You roll a number cube twice. Find the probability of the events. Rolling an odd number 2 or a 4.
Digiron [165]

Answer:

5/12

Step-by-step explanation:

If you roll it twice there are 12 options. The odd numbers are 1, 3, and 5. Add 2 and 4, and that's a 5/12 chance.

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3 years ago
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