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andriy [413]
3 years ago
12

A student timed his drive to work each day for three days. The times are shown below:

Mathematics
2 answers:
cupoosta [38]3 years ago
8 0

Answer:

20 minutes

Step-by-step explanation:

The mean, or average of a data set can be found by adding all the values together, and dividing by the number of values.

The data set is: 20 minutes, 22 minutes and 18 minutes

1. Add the values together

Add all the numbers in the set together.

Data set: 20, 22, 18

Add them: 20+22+18

60

2. Divide by the number of values

Count how many numbers are in the set.

In this set, there are 3 numbers.

Divide 60 by 3

60/3 =20

20 minutes

His mean time is 20 minutes.

ella [17]3 years ago
3 0

Answer:

30 minutes

Step-by-step explanation:

Mean means the average so the average equals (20+22+18)/2

= 30

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What is the distributive property for 9−12x+6y=
Ulleksa [173]

Because there are no parentheses, I'm assuming you're asking for how to factor this using the GCF, which can be done like so:

9−12x+6y

Factor a 3 out of this expression.

3(3 - 4x + 2y)

The expression has been simplified using the distributive property in reverse.


8 0
3 years ago
The longest human power sporting event is the tour de France cycling race in a particular year the average speed for the winner
sergey [27]

Answer:

The winner completed the race in 96 hours and 52 minutes.

Step-by-step explanation:

Given:

Distance of the cycling race = 2292 miles

Average speed of the winner = 23.66\  mph

We need to find time required by winner to complete the race.

Solution:

Now we know that;

Time required can be calculated by dividing Total Distance from the Average speed.

framing in equation form we get;

time required by winner to complete the race = \frac{2292}{23.66} = 96.87\ hrs

Now converting 0.87\ hrs into minutes we get;

0.87\times 60= 52.2\approx 52\ mins

Hence the winner completed the race in 96 hours and 52 minutes.

3 0
2 years ago
Factor out the coefficient of the variable 5/6s+2/3
DochEvi [55]
Okay. so I'm gonna assume you know what factor out means--were gonna take out 5/6. what we need to know is, how does that affect our ending number 2/3? well, we're gonna have 5/6 times some stuff first off, right?

5/6 ( )

so what's in the parenthesis? well, if we distribute in our mind, S would just have to be by itself for it to work out. so we have

5/6 ( s )

but what about 2/3? well, if we're multiplying everything on the inside by 5/6, how can be get it to cancel and leave 2/3 alone? we could divide 2/3 by 5/6, right?

5/6 ( s + (2/3) / (5/6) )

now, when we distribute our 5/6, we'll have just 2/3 at the end. now let's simplify that end term so it looks a little better. if we divide by a fracion, that's the same as multiplying by the flipped version, so let's do that.

2/3 / 5/6 = 2/3 × 6/5 = 2 (6) / 5 (3) = 12/15

we can reduce 12/15 by dividing the top and bottom by three.

= 4/5

so our final answer would be:

5/6 [S + 4/5] you can redistribute to make sure it matches. Anyway, hope that helps!
6 0
3 years ago
Zach spent 2/3 hour reading on Friday a 11/3 hlurs reading on Saturday. How much more time did he read on Saturday tha on Friday
mr Goodwill [35]

notice, the denominator for each fraction is the same, thus the LCD is just 3.

\bf \cfrac{11}{3}-\cfrac{2}{3}\implies \cfrac{11-2}{\stackrel{LCD}{3}}\implies \cfrac{9}{3}\implies 3

6 0
2 years ago
Which is the best estimate of the area of the figure in square centimeters
laila [671]

Answer:

38.28 cm = D. 38

Step-by-step explanation:

Area of the Rectangle: l x w

Length: 6 cm

With: 4 cm

Area = 4 x 6

Area of Rectangle: 24 cm

Area of the Triangle: lw(1/2)

Length: 4 cm

Width: 4 cm

Area: 4 x 4 = 16 x 1/2 = 8

Area of Triangle: 8 cm

Area of the Circle: pi x r^2 x 1/2

Radius: 2 cm

Pi: 3.14

Area: 3.14 x 2^2

Area: 3.14 x 4 = 12.56

Area of Circle: 12.56 x 1/2

Lastly, you add them all together:

24 + 8 + 6.28 = 38.28 cm

4 0
3 years ago
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