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3 years ago

Find the unit rate. 33 kilometers in 3 hours=? kilometers per hour

Mathematics

2 answers:

sertanlavr [38]3 years ago

8 0

Answer:

11 kilometers per hour is the unit rate in km/hr

Step-by-step explanation:

Using a ratio of 33 kilometers to 3 hours, we know that it is equivalent to a ratio of 11 to 1.

Same as 33 divided by 3 to be equal to 11,

and 3 divided by 3 to equal 1

Thus in 1 hour we know that 11 kilometers will be the distance.

So the final answer is 11 kilometers per hour as the unit rate.

muminat3 years ago

3 0

11 kilometers per hour

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3 years ago

Wich expression equivalent to 4 (x + 1) +7 (x+3)

dangina [55]

Answer:

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Step-by-step explanation:

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3 years ago

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3 years ago

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Rashid [163]

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3 years ago

Here are two datasets:

fiasKO [112]

Answer:

Option a) Mean

Mean is affected a lot by the change in the last observation as the median remains the same.

Step-by-step explanation:

we are given the following in the question:

Data set A: 64, 65, 66, 68, 70, 71, 72

Data set B: 64, 65, 66, 68, 70, 71, 720

For data set A, the mean and median are 68.

For data set B:

Formula:

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

$Mean =\displaystyle\frac{1124}{7} = 160.57$

$Median:\\\text{If n is odd, then}\\\\Median = \displaystyle\frac{n+1}{2}th ~term \\\\\text{If n is even, then}\\\\Median = \displaystyle\frac{\frac{n}{2}th~term + (\frac{n}{2}+1)th~term}{2}$

Sorted data:

64, 65, 66, 68, 70, 71, 720

$\text{Median} = \dfrac{7+1}{2}^{th} \text{ term} = 4^th\text{ term} = 68$

Clearly, 720 is the is a outlier.

As seen mean is affected a lot by the change in the last observation as the median remains the same.

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3 years ago