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3 years ago

Help me with IXL please

Mathematics

2 answers:

lilavasa [31]3 years ago

3 0

Answer:

$98

Step-by-step explanation:

Tommy will receive his $82 he earns every week as well as 20% of what he sold.

He sold $80. 20% of $80 is $16 (80*0.2)

$16 commission + $82 per week = $98

dalvyx [7]3 years ago

3 0

Tommy will receive $82

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3 years ago

What does B equal to

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4 years ago

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3 years ago

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The Environmental Protection Agency records data on the fuel economy of many different makes of cars. Data on the mileage of 20

artcher [175]

Answer:

A) 8.5 miles per gallon

Step-by-step explanation:

Given

$x = \{12\ 13\ 15\ 16\ 16\ 17\ 18\ 18\ 19\ 19\ 20\ 20\ 22\ 23\ 24\ 26\ 26\ 27\ 27\ 29\}$

$n = 20$

Required

The IQR

This is calculated as:

$IQR = Q_3 - Q_1$

Calculate $Q_1$

$Q_1 = \frac{1}{4}(n + 1)th$

$Q_1 = \frac{1}{4}(20 + 1)th$

$Q_1 = \frac{1}{4}(21)th$

Remove bracket

$Q_1 = 5.25th$

This means that:

$Q_1$ is the mean of 5th and 6th item

From the given data:

$5th \to 16$

$6th \to 17$

So, we have:

$Q_1 = \frac{1}{2}(16 + 17)$

$Q_1 = \frac{1}{2}(33)$

$Q_1 = 16.5$

$Q_1 = 16.25$

Calculate $Q_3$

$Q_3 = \frac{3}{4}(n + 1)th$

$Q_3 = \frac{3}{4}(20 + 1)th$

$Q_3 = \frac{3}{4}(21)th$

Remove bracket

$Q_3 = 15.75th$

This means that:

$Q_3$ is the mean of 15th and 16th item

From the data:

$15th \to 24$

$16th \to 26$

So:

$Q_3 = \frac{1}{2}(24 + 26)$

$Q_3 = \frac{1}{2}(50)$

$Q_3 = 25$

Recall that:

$IQR = Q_3 - Q_1$

$IQR = 25 -16.5$

$IQR = 8.5$

7 0

3 years ago

NEEDED BY TOMORROW!

marissa [1.9K]

Answer:

$0.375$ , Terminating

Step-by-step explanation:

Mackenzie has 32 books and 12 of which are by her favorite author.

One of the easier ways to convert something to a decimal is to first start as a fraction. We need to have it be the number of books by her favorite author (12) out of the total number of books that she owns (32)

This in the form of a fraction would be $\frac{12}{32}$

Now, let us reduce this fraction.

Both terms can be divided by 4

$\frac{12}{32}/\frac{4}{4} \\\\\frac{3}{8}$

Recall that $\frac{1}{8} =0.125$

This means that

$\frac{3}{8} =3*0.125=0.375$

As you can see. this decimal stops after 3 places, which means that it is terminating.

7 0

3 years ago