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3 years ago

Ellie earned $18.40 by babysitting. She worked 2.3 hours. How much money was Ellie paid per hour?

Mathematics

2 answers:

Georgia [21]3 years ago

6 0

You divide 18.40 by 2.3 to find out how many dollars per hour. 18.40/2.3=8.
Ellie earned $8.00 per hour.

Alona [7]3 years ago

4 0

18.40/2.3 = 8
She earned $8.00 per hour.

Your Welcome. =D

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Step-by-step explanation:

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Vikentia [17]

Answer:

1: 130

2: 70

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Supplementary angles add up to equal 180

So to find the measure of the missing angles, we subtract the measure of the known angles from 180

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∠B = 180 - 50

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Either enter an exact answer in terms of \piπpi or use 3.14, point, 14 for \piπpi and enter your answer as a decimal.

OverLord2011 [107]

Answer:

49π sq. units

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Find the diagram attached

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In a sample of n = 6 scores, 5 of the scores are each above the mean by one point. Where is the 6th score located relative to th

den301095 [7]

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The location of the 6th score relative to the mean is 5 points below the mean

Let:

$\bar x \to$ Mean

$a \to$ 5 scores

$b \to$ 6th scores

Given that:

$n = 6$

The 5 scores that are 1 above the mean implies that:

$a = \bar x + 1$

The mean of a dataset is calculated using:

$\bar x = \frac{\sum x}{n}$

So, we have:

$\bar x =\frac{5a + b}{6}$

$\bar x =\frac{5(\bar x + 1) + b}{6}$

Open brackets

$\bar x =\frac{5\bar x + 5 + b}{6}$

Multiply both sides by 6

$6\bar x =5\bar x + 5 + b$

Make b the subject

$b = 6\bar x -5\bar x - 5$

$b = \bar x - 5$

This means that the 6th score is 5 points below the mean