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2 years ago

What is the mean of these numbers ? 2,8,4,6,5

Mathematics

1 answer:

MrRa [10]2 years ago

4 0

Answer:

5 is the mean

Step-by-step explanation:

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Finding the median 0,2,3,4,4,6,7

Oksanka [162]

The median is 4......

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2 years ago

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Marco drove 75 miles in 1 2/3 hours. how many miles ca he drive in 1 hour?

GenaCL600 [577]

Answer:

45 miles

Explanation:

The distance driven is directly proportional to the time:

distance / time = K

Which can also be written as:

distance₁ / time₁ = distance₂ / time₂

Here you have:

distance₁ =75 miles

time₁ = 1 + 2/3 hours = (3 + 2) / 3 hours = 5/3 hours

distance₂ = x

time₂ = 1 hour

With that you can set up a proportion:

75 miles / (5/3) hour = x₂ / 1 hour

Solving for x₂ you get:

x₂ = [75 miles] × 1 hour / (5/3 hour) = 3 × 75 / 5 miles = 45 miles

4 0

2 years ago

Can someone my answers

erik [133]

Answer:

Option 2 is correct that is $\frac{x+2}{x+9}$ and $x\neq-9$ and $x\neq-12$

Step-by-step explanation:

We have been given with the expression $\frac{x^2-10x-24}{x^2-3x-108}$

We will simplify the given expression by factorisation we will get $\frac{x^2-12x+2x-24}{x^2-12x+9x-108}$

Taking x as common from first two terms in numerator and 2 from last two terms in numerator

Similarly, take x common from first two terms and 9 from last two terms in denominator we will get

$\frac{x(x-12)+2(x-12)}{x(x-12)+9(x-12)}$

After arranging the terms we will get $\frac{(x+2)(x-12)}{(x+9)(x-12)}$

Taking out the common factor which is (x-12) from numerator and denominator it will get cancelled we will get

$\frac{(x+2)}{(x+9)}$

Hence, Option 2 is correct that is $\frac{x+2}{x+9}$ and $x\neq-9$ and $x\neq-12$

6 0

2 years ago

Aurelia would like to save $474.72 in a year to purchase a new video camera.She estimates she needs to save $40 per month.Explai

pishuonlain [190]

Her estimate is reasonable because there are 12 months in a year. 12×40 is 480. 480 is pretty close to 474.72

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2 years ago

E Find the mode of the data set: 25,29, 22,19,20,29, 23, 29, 19,31

Vesna [10]

Answer:

the mode is 29

Step-by-step explanation:

the mode is the number that appears most often in a set of data, thus making it 29

7 0

1 year ago

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