3 years ago

Only need help with number 7

Mathematics

2 answers:

den301095 [7]3 years ago

8 0

640 ÷ 27 = 23.703737..
594 ÷ 25 = 23.76

ANSWER : D

joja [24]3 years ago

7 0

The answer is d A calculator

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The value of a boat is $23,400. It loses 10% of its value every year. Find the approximate monthly percent decrease in value. Ro

Brrunno [24]

Answer:

Value of boat = $23,400

Loss of value by boat per year = 8%

To find: - Monthly percent decrease in value of boat.

Solution: - Decrease of value per year = 8% of $23,400 = $1,872. Monthly decrease in value = $1,872/12 = $156. Monthly percentage decrease = ($156/$23,400) * 100 = 0.6667 or 0.67 (rounded to nearest hundredth)

Step-by-step explanation:

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2 years ago

Sixteen college freshmen were asked to record the number of alcoholic drinks they typically consume in a week. Here are their da

rjkz [21]

Solution: The correct option is d. 8.75

<u>Explanation:</u>

The formula for variance is:

$Variance =\frac{\sum(x-\bar{x})^{2}}{n}$

First we need to find the mean $\bar{x}$ of the given data:

$\bar{x}=\frac{2+4+6+0+1+10+9+0+6+3+6+8+5+4+6+2}{16}=\frac{72}{16} =4.5$

Now let's find $\sum(x-\bar{x})^{2}$ , please have a look at the attached picture:

$\therefore Variance = \frac{140}{16}=8.75$

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3 years ago

Half of a number is three times the sum of a number ad five.

krek1111 [17]

If you treat the number as x, then $\frac{1}{2}x=x+5\to-5=\frac{1}{2}x\to-10=x$ .

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2 years ago

Use partial sums to find 65+7+13

VARVARA [1.3K]

85Answer:

Step-by-step explanation:

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3 years ago

It takes a Kailtyn 1/8 of an hour to make a pair of earrings. How many pairs can Kailtyn make in 3 3/8 hours?

Fantom [35]

Answer:

I think the answer is 27 im not sure although i hope it is correct

Step-by-step explanation:

Good luck and have a good day

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