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Vilka [71]
1 year ago
12

In 2012, Gallup asked participants if they had exercised more than 30 minutes a day for three days out of the week. Suppose that

random samples of 100 respondents were selected from both Vermont and Hawaii. From the survey, Vermont had 65.3% who said yes and Hawaii had 62.2% who said yes. What is the value of the sample proportion of people from Hawaii who exercised for at least 30 minutes a day 3 days a week?
Mathematics
1 answer:
enot [183]1 year ago
7 0

Answer:

0.622

Step-by-step explanation:

According to the question,

62.2% of the respondents from Hawaii said that they had exercised more than 30 minutes a day for 3 days out of the week.

So, value of the sample proportion of people from Hawaii who exercised for at least 30 minutes a day for 3 days in a week is given by,

\frac {62.2}{100}

= 0.622  

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ivolga24 [154]
The LCM would be 14.. your textbook would be really helpful
7 0
2 years ago
Leah decided to paint some of the rooms at her 51-room hotel. She needs 1/5 of a can of paint per room. If Leah had 6 cans of pa
netineya [11]

Answer:

Leah can paint 30 rooms.

Step-by-step explanation:

Each room requires \dfrac{1}{5} of a can of paint, this means painting 5 rooms requires

\dfrac{1}{5}+\dfrac{1}{5}+\dfrac{1}{5}+\dfrac{1}{5}+\dfrac{1}{5}=\dfrac{1+1+1+1+1}{5}=\dfrac{5}{5} =1

or 1 can paints 5 rooms.

So, if Leah has 6 cans of paint, then how many rooms can she paint?

Leah can paint

\dfrac{5\:rooms}{can} *6\:cans=\boxed{30\: rooms}

Leah can paint 30 rooms with 6 cans of paint.

5 0
1 year ago
A local PTA runs a fundraiser, selling lottery tickets for $5, offering 1 first prize of $100 and 5 second prizes worth $20 each
podryga [215]
100 tickets were sold.
The total amount of the tickets sold is = 5 * 100 = $500. 
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Second prize worth = $20 * 5 = $100
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Net amount of tickets sold = $500 - $200 = $300
Expected price of each ticket sold = $300/100 = 3.
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6 0
2 years ago
Mia records the distance traveled in x minutes in the table below, while Alexa uses a graph to record her distance traveled over
notka56 [123]

Answer:

1. Alexa traveled at a faster rate because the slope of her line is \frac{3}{4}, which is greater than the slope of the line described by the data in Mia’s table.

Step-by-step explanation:

We know that,

Slope of (x_{1},y_{1}) and (x_{2},y_{2}) is \frac{y_{2}-y_{1}}{x_{2}-x_{1}}

Mia records the distance traveled over the time by the table.

Taking the points (10,5) and (18,9), the slope is given by,

Mia's slope = \frac{9-5}{18-10}

i.e. Mia's slope = \frac{4}{8}

i.e. Mia's slope = \frac{1}{2}

Alexa records the distance traveled over the time by the graph.

Taking the points (4,3) and (8,6), the slope is given by,

Alexa's slope = \frac{6-3}{8-4}

i.e. Alexa's slope = \frac{3}{4}

As, Alexa's slope = \frac{3}{4} > \frac{1}{2} = Mia's slope.

So, the correct option is,

1. Alexa traveled at a faster rate because the slope of her line is \frac{3}{4}, which is greater than the slope of the line described by the data in Mia’s table.

7 0
1 year ago
Read 2 more answers
Malik's solution to the equation , when , is shown below. What error did Malik make first when solving the equation ? Malik did
Marianna [84]

Answer:

Malik substituted 60 for y instead of x.

Step-by-step explanation:

According to the given situation the computation of error that Malik make first when solving the equation is shown below:-

First, we will find the value of x

\frac{2}{5} x - 4(60) = 10

\frac{2}{5} x = 10 + 240

\frac{2}{5} x = 250

x = 625

Now, we have

\frac{2}{5} x - 4 y = 10

we will solve the above equation, to find the value of y

24 - 4y = 10

4y = 24 - 10

4y = 14

y = \frac{14}{4}

y = \frac{7}{2}

So, from the above calculation, the correct option is

Malik substituted 60 for y instead of x.

3 0
1 year ago
Read 2 more answers
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