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3 years ago

What are Interquartile range

Mathematics

1 answer:

CaHeK987 [17]3 years ago

6 0

It's the measure of variability, based on dividing a data set into quartiles.

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Driving to your friend's house, you travel at an average rate of 35 miles per hour. On your way home, you travel at an average r

kenny6666 [7]

Answer:

14 miles

Explanation:

The relation that will be used to solve this problem is:

$Distance = Velocity*Time$

which can be rewritten as:

$Time = \frac{Distance}{Velocity}$

Assume that:

Distance from your house to your friend's house is d

Time taken from your house to your friend's house is t₁

Time taken from your friends house to your house is t₂

1- From your house to your friend's house:

Average rate = 35 miles/hour

Therefore:

$t_{1} = \frac{d}{35}$

2- From your friend's house to your house:

Average rate = 40 miles per hour

Therefore:

$t_{2} = \frac{d}{40}$

3- Round trip:

We know that the round trip took 45 minutes which is equivalent to 0.75 hours

This means that:

t₁ + t₂ = 0.75 hours

$\frac{d}{35}+\frac{d}{40}=0.75\\ \\\frac{40d + 35d}{1400}=0.75\\ \\\frac{75d}{1400}=0.75\\ \\ 1050 = 75d\\ d=14 miles$

Hope this helps :)

3 0

4 years ago

To two decimal places, √70 must lie between ____ and _____.

Verdich [7]

Answer:

between 8.36 and 8.37

Step-by-step explanation:

$\sqrt{70} =8.3666$

Hope this helps

3 0

2 years ago

You thought you would get an 89% on your math test .you got an 84% what was the percentage error

muminat

I think it is 5%, hope it help

7 0

3 years ago

Mia uses 1/5 of a bag of gravel in the morning and 11/12 of a bag in the afternoon and how much gravel does she use in one day

wariber [46]

Answer:

She used 67/60 of a bag of gravel in one day.

Step-by-step explanation:

We must get a common denominator so we can add the two fractions.

Let's use 60!

1/5 = 12/60

11/12 = 55/60

Now we can add and get 67/60!

She used 67/60 of a bag of gravel in one day.

3 0

3 years ago

18% of what number is 29?

galina1969 [7]

Alright, so we are trying to figure out what number 18% of equals 29. First, we should divide 100 by 18 we get 5.55555555555. That means 29*5.5555555555 is the number we are looking for: 29*5.5555555555=161.111111

Answer:161.11111111111(repeated infinitely)

5 0

4 years ago