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2 years ago

Please help. Have a good day

Mathematics

1 answer:

Verizon [17]2 years ago

7 0

It will take her 9 days to run 4 miles. She will not be able to run in whole week.

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Doris takes a survey of her class and finds that 2 of the 20 students in class are left-handed.

djyliett [7]

Hey there, Alex!

She would expect 55 of them to be left handed.

Work: 550 / 20 = 27.5

27.5 x 2 = 55

Hope I was able to help!

6 0

2 years ago

Find the equation of the line that passes through the two points (5,-3) and (-5,2). Write your answer in standard form. Help me

lidiya [134]

Answer:

x + 2y = -1

Step-by-step explanation:

First, we'll find the slope.

Slope = (2 - (-3)) / (-5 - 5) = 5 / -10 = -1/2

Since we know the slope and a point that belongs to the line, we can write this in point-slope form which will be:

y - 2 = -1/2(x - (-5)) *I used (-5, 2) but it doesn't matter which point you use

y = -1/2(x + 5) + 2

y = -1/2x - 1/2

Standard form:

1/2x + y = -1/2

x + 2y = -1

8 0

2 years ago

Given the set of data: 24, 43, 65, 12, 31, 78, 43, 24, 25, 18, 29, 53, 18, 23, 20, 43, 53, 25 Determine the quartiles.

worty [1.4K]

Answer:

Lower quartile= 4.75

Middle quartile= 9.5

Upper quartile= 14.25

Step-by-step explanation:

The given date set is 24, 43, 65, 12, 31, 78, 43, 24, 25, 18, 29, 53, 18, 23, 20, 43, 53, 25

On counting them we notice that it's number of element is 18

So N = 18

Arranging them in ascending order gives

12,18,18,20,23,24,24,25,25,29,31,43,43,43,53,53,65,78

Lower quartile= (N+1)*1/4

Lower quartile= (18+1)/4

Lower quartile= 19/4

Lower quartile= 4.75

Middle quartile= (N+1)*2/4

Middle quartile= (18+1)*2/4

Middle quartile= (19)*2/4

Middle quartile= 9.5

Upper quartile= (N+1)*3/4

Upper quartile= (18+1)*3/4

Upper quartile= (19)*3/4

Upper quartile= 14.25

Inter quartile range = upper quartile- minutes lower quartile

= 14.25-4.75

= 9.5

4 0

2 years ago

A set of barstools were priced $284.80 after a 20% discount was applied. What was the price of the set of barstools before the d

Lorico [155]

Answer:

$356.00

Step-by-step explanation:

If d represents the discounted price, and p is the original price, you have ...

d = p - 20% × p = p(1 -20%) = 0.80p

Then the original price is ...

p = d/0.80 . . . . . divide by the coefficient of p

p = $284.80/0.80 = $356.00

The price before the discount was $356.00.

5 0

2 years ago

Residents of the town of Smithfield like to consume hams, but each ham requires 10 people to produce it and takes a month. If th

Snezhnost [94]

Answer:

A tenth of a ham.

Step-by-step explanation:

1 Ham requires 10 people to make it and takes 1 month.

the population of the town is 100, so the quantity of ham we can produce is given by:

$\frac{Total People}{people required} = \frac{100}{10} = 10$

Acording to the last result, we can produce 10 hams per month.

if the total of people is 100, and the hams produced was 10, each people can consume:

$\frac{hams}{people} = \frac{10}{100} = 0.1$

5 0

2 years ago