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3 years ago

9

Sam and his friends had take-out spaghetti and meatballs for dinner. The tax was $3. The tax rate is 7.5%. What was the price

of the dinners including tax?

2 answers:

IrinaK [193]3 years ago

7 0

Answer:

$40 is the correct answer

loris [4]3 years ago

5 0

Answer:

$43 including tax

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Males have red blood cell counts with a mean of 4.719 and a standard deviation of .490, while females have red blood cell counts

iVinArrow [24]

Answer:

<em><u>The female has a higher count relative to the sample of females than the male relative to the sample of males.</u></em>

Explanation:

When you want to compare the means of two samples with different statistics you may use the z-score.

The z-score measures how far a value (data point) is from the mean, in terms of the standard deviation.

The z-score is calculated as:

$z-score=(x-\mu )}/\sigma$

Where:

$x=\text{value of the data}\\\\\mu =mean\\\\\sigma = \text{standard deviation}$

<u>1. Male with a count of 5.58 </u>

$z-score=(5.58-4.719)/0.490=1.757$

<u />

<u>2. Female with a count of 5.23</u>

$z-score=(5.23-4.349)/0.402=2.192$

Therefor, the z-score of the female is greater than the z-score of the male.

The greater z-score means that, relative to her group, the female has a higher count than the male.

7 0

3 years ago

___________thousands= 90 hundreds

Darina [25.2K]

0 hundreds<span> is equal to 9000. To find the number of 10's in 9000, simply divide them 9000/10 = 900. Comments; Report</span>

3 0

2 years ago

A projectile’s motion is modeled by the function given in the table, where x represents time in seconds and f(x) represents heig

Pie

Answer: 2 seconds

Step-by-step explanation:

got it right

4 0

2 years ago

Which number line represents the solution set for the inequality -4(x + 3) S-2 - 2x?

Basile [38]

Answer:

Which number line represents the solution set for the inequality -4(x + 3) S-2 - 2x?

-7 -6 -5 -4 -3 -2 -1 0

1

2

3

4

5

6

7

+ + +

-7 -6 -5 -4 -3 -2 -1 0

+

1

+

2

+

3

0 1 2

Step-by-step explanation:

5 0

3 years ago

a fall dance sold 18 tickets during the first day of sales. this was 25% of the total sales. how many tickets were sold to the f

alexandr402 [8]

Answer:

72

Step-by-step explanation:

I have a weird way of doing it

so if 18 is 25%

18+18=36

then 36 would be 50%

36+36=72

so then 72 would be 100%

72*.25=18

6 0

2 years ago

Read 2 more answers