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labwork [276]
3 years ago
11

Forty-five people were asked about how many miles they walked in one week. The results are shown in the graph. How does the medi

an number of miles walked for boys compare with the median number of miles walked for girls? A) The median for the boys is 1 mile less than the girls B) The median for the boys is 1 mile more than the girls. C) The median for the boys is 1.4 miles more than the girls. D) The median for the boys is 1.4 miles less than the girls.
Mathematics
2 answers:
Murrr4er [49]3 years ago
8 0

Answer:

the answer is b got it right over usatestprep

Step-by-step explanation:

kvasek [131]3 years ago
5 0
This is inconclusive cause 
1. There is 45 people, it doesnt specify how many men and women there is

My best guess due to the fact about the timing for the miles in the military a man in order to qualify he would have to run a mile in 11.00 and for women it would be 13.56

My answer would be B. Hope that helps
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Farmer sells 6.2 kg of pears and apples at the farmers market 3/5 of this away is Paris, and the rest is apples. How many kilogr
Romashka [77]

Answer:

2.48 kg

Step-by-step explanation:

1 - ⅗ = ⅖

⅖ × 6.2 = 2.48

8 0
3 years ago
Jamal earns $40 washing 5 windows. At this rate, how many windows did Jamal wash to earn $80?​
Alja [10]
10 windows : divide 40/5=8
Then divide 80/8 =10
3 0
2 years ago
Read 2 more answers
Solve the system using the substituiton method<br> branliest offered<br> 3x-7y=10<br> x-4y=5
fiasKO [112]
Hi there!

To solve this problem using substitution, we need to set x equal to a value and substitute it into the other equation.

Since
x - 4y = 5,
x = 5 + 4y

3x - 7y = 10
3(5 + 4y) - 7y = 10
15 + 12y - 7y = 10
15 + 5y = 10
5y = -5
y = -1

Now that we know y is -1, we can substitute it back into the equation to find x:

y = -1
x - 4y = 5
x - 4(-1) = 5
x - (-4) = 5
x + 4 = 5
x = 1

So, your answers are x = 1 and y = -1.

Hope this helps!
6 0
3 years ago
Avoiding an accident while driving can depend on reaction time. Suppose that reaction time, measured from the time the driver fi
Nadya [2.5K]

Answer:

2.5% of drivers have a reaction time more than 2.14 seconds

16% of drivers have a reaction time less than 1.78 seconds

84% of drivers have a reaction time less than 2.02 seconds

Step-by-step explanation:

The Empirical Rule(68-95-99.7 rule) states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

The normal distribution is symmetric, which means that 50% of the measures are below the mean and 50% are above.

In this problem, we have that:

Mean = 1.9s

Standard deviation = 0.12

What percentage of drivers have a reaction time more than 2.14 seconds?

2.14 = 1.9 + 2*0.12

So 2.14 is two standard deviations above the mean.

Of the 50% of the measures above the mean, 95% are within 2 standard deviations of the mean, so, below 2.14. The other 5% is above.

0.05*0.5 = 0.025

2.5% of drivers have a reaction time more than 2.14 seconds

What percentage of drivers have a reaction time less than 1.78 seconds?

1.78 = 1.9 - 0.12

So 1.78 is one standard deviation below the mean.

Of the 50% of the measures that are below the mean, 68% are within one standard deviation of the mean, that is, greater than 1.78.

100 - 68 = 32

0.32*50 = 0.16

16% of drivers have a reaction time less than 1.78 seconds

What percentage of drivers have a reaction time less than 2.02 seconds?

2.02 = 1.9 + 0.12

So 2.02 is one standard deviation above the mean.

Of the measures that are below the mean, all are below 2.02.

Of those that are above, 68% are below 2.02.

0.5 + 0.68*0.5 = 0.84

84% of drivers have a reaction time less than 2.02 seconds

5 0
3 years ago
Justin did push-ups for the past 5 days. The following data points are the number of push-ups he did each day.
irga5000 [103]

Answer:

2.67

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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