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Nina [5.8K]
2 years ago
5

Sylvia asked a random sample of students whether they prefer eating vegetables or fruits as a snack, and whether they prefer to

bicycle or to walk. The results are shown in the table. Snack and Activity Preferences Bicycle Walk Total Vegetables 11 17 28 Fruits 16 10 26 Total 27 27 54 Approximately what percentage of the students surveyed prefer to eat vegetables and prefer to bicycle? A. 11% B. 20% O C. 30% OD. 41% O E. 51%​
Mathematics
2 answers:
Lorico [155]2 years ago
6 0

Answer: could be 20%, sorry if im wrong

Step-by-step explanation:

kkurt [141]2 years ago
3 0

Answer:

20%

Step-by-step explanation:

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Aron charges an initial service fee of 10$ plus 15$ per hour , what is X?
Marysya12 [62]

Answer:

The linear function becomes:

y = 15x + 10

Here, 'x' is the number of hours, b=10 is the initial service fee i.e. $10, 15 is slope or rate of change, and 'y' is the cost.

Step-by-step explanation:

We know that the slope-intercept of a linear function is

y = mx+b

where m is the slope and b is the y-intercept

Note: Slope is also termed as the 'rate of change'.

Given that Aron charges an initial service fee of 10$.

Thus, the y-intercept = b = 10

As the rate of change = 15$ per hour

so the slope = m = 15

Therefore, the linear function becomes:

y = mx+b

y = 15x + 10

Here, 'x' is the number of hours, b=10 is the initial service fee i.e. $10, 15 is slope or rate of change, and 'y' is the cost.

For example, in one hour i.e. x = 1, the cost 'y' will be:

y = 15x + 10

y = 15(1) + 10

y = 25 + 10

y = $25

Therefore, in one hour (x=1), the cost will be: y = $25

7 0
3 years ago
What is the volume of a sphere with a radius of 9 inches
Effectus [21]
Given the formula 
V=\frac{4}{3}πR³
so V=\frac{4}{3}π9³=972π
7 0
3 years ago
Read 2 more answers
Is it a b c or d i need help pleaseee
Dmitrij [34]

Answer:

d

Step-by-step explanation:

5 0
2 years ago
AARP reported on a study conducted to learn how long it takes individuals to prepare their federal income tax return (AARP Bulle
Crank

Answer:

Confidence interval: (30.1,36.9)

Step-by-step explanation:

We are given the following data set:

35.3,30.5,37.4,26.5,13.0,49.9,28.8,44.0,61.6,0.5,40.5,34.9,47.9,36.6,24.1,39.8,47.8,18.5,36.6,39.2,14.5,37.3,40.5,49.3,45.5,28.3,19.5,5.6,52.6,41.4,45.3,39.0,33.7,29.4,14.5,40.1,33.7,36.9,5.6,33.7

Formula:

\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n-1}}  

where x_i are data points, \bar{x} is the mean and n is the number of observations.  

Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}

Mean =\displaystyle\frac{1339.9}{40} = 33.5

S.D = 11(given)

n = 40

Confidence interval:

\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}

Putting the values, we get,

z_{critical}\text{ at}~\alpha_{0.05} = 1.96

33.5 \pm 1.96(\frac{11}{\sqrt{40}} ) = 6.34 \pm 3.4 = (30.1,36.9)

6 0
3 years ago
COULD SOMONE PLZ PLZ HELP ME WITH THIS PROBLEM!!!
Jlenok [28]
1.b 2.a lines are parallel hope this helps =3

6 0
3 years ago
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