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2 years ago

Find each unit price. 5 used books for $9.45

Mathematics

1 answer:

Olegator [25]2 years ago

6 0

Answer:

$1.89 per used book

Step-by-step explanation:

Divide the total price ($9.45) by the amount of items (5) and you get the unit price of $1.89 per item

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Brandon has a rectangular garden. The garden is 24 feet long and 16 feet wide. He wants to increase the size of the

Marta_Voda [28]

Answer:96

Step-by-step explanation:24•16/4

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3 years ago

Cami and Enrique's ages add up to 46. Cami is two years older than three times Enrique's age. How old are Cami and Enrique?

stira [4]

answer:

Cami is 35 and Enrique is 11

35 plus 11 = 46

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3 years ago

Write two integers with different signs that have a sum of -25.

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Answer:

-25+0

-30+5

-15-10

-20-5

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3 years ago

Solving perimeter and area problems

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For perimeter you add all of the sides but for area you multiply each side

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3 years ago

Each of 16 students measured the circumference of a tennis ball by four different methods, which were: A: Estimate the circumfer

almond37 [142]

Answer:

Following are the solution to the given equation:

Step-by-step explanation:

Please find the complete question in the attachment file.

In point a:

$\to \mu=\frac{\sum xi}{n}$

$=22.8$

$\to \sigma=\sqrt{\frac{\sum (xi-\mu)^2}{n-1}}$

$=\sqrt{\frac{119.18}{16-1}}\\\\ =\sqrt{\frac{119.18}{15}}\\\\ = \sqrt{7.94533333}\\\\=2.8187$

In point b:

$\to \mu=\frac{\sum xi}{n}$

$=20.6875$

$\to \sigma=\sqrt{\frac{\sum (xi-\mu)^2}{n-1}}$

$=\sqrt{\frac{26.3375}{16-1}}\\\\=\sqrt{\frac{26.3375}{15}}\\\\ =\sqrt{1.75583333}\\\\ =1.3251$

In point c:

$\to \mu=\frac{\sum xi}{n}$

$=21$

$\to \sigma=\sqrt{\frac{\sum (xi-\mu)^2}{n-1}}$

$=\sqrt{\frac{2.62}{16-1}}\\\\ =\sqrt{\frac{2.62}{15}} \\\\= \sqrt{0.174666667}\\\\=0.4179$

In point d:

$\to \mu=\frac{\sum xi}{n}$

$=20.8375$

$\to \sigma=\sqrt{\frac{\sum (xi-\mu)^2}{n-1}}$

$=\sqrt{\frac{8.2975}{16-1}}\\\\ =\sqrt{\frac{8.2975}{15}} \\\\ =\sqrt{0.553166667} \\\\ =0.7438$

6 0

3 years ago