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Illusion [34]
3 years ago
15

24. If Jenna spent 30 hours on the computer this week. how much total time did she spend on

Mathematics
1 answer:
Verdich [7]3 years ago
7 0

Option B) 3 hours is the time spent by Jenna on the e-mail this week.

<u>Step-by-step explanation:</u>

Jenna spent 30 hours on the computer this week.

The amount of time she spends on computer to work on various fields in given in the pie-chart.

This 30 hours represents her 100% work on computer.

From the figure shown,

She spent 10% of her total work on e-mail.

Therefore, 10% of 30 is the work done in hours by her on e-mail.

⇒ (10/100) × 30

⇒ 0.1 × 30

⇒ 3 hours

∴ Option B) 3 hours is the time spent by Jenna on the e-mail this week.

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Are randomly choosing a person who is left-handed and randomly choosing a person who is right-handed mutually exclusive events?
Masteriza [31]

Answer: No .

Step-by-step explanation:

There are special cases where a person can use right and left hand equally well . I.e ambidextrous .

In statistical terms and probability theory, two events (or propositions) are mutually exclusive or disjoint if they cannot both occur at the same time .however in this case it may occur that the person is right and left handed at the same time .

7 0
3 years ago
Please answer this question !! Will give brainliest to the best answer and 30 points !!
sergey [27]

Hi,

Get knowledge *throw math book at brain*

8 x 8 x 8 is 512 so its not a or b, add that to 6 times 6 and it equals d 546,

Answered by Britton have a nice day:)

8 0
3 years ago
Read 2 more answers
An airplane travels 640 miles from Topeka to Houston in 3.2 hours, going against the wind. The return trip is with the wind, and
Mandarinka [93]

The  airplane flies at 260 mi/h with no wind, while the rate of the wind is 60 mi/h.

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more numbers and variables.

Let a represent the rate of the airplane with no wind. and b the rate of the wind, hence:

(a - b)3.2 = 640

a - b = 200   (1)

Also:

(a + b)2 = 640

a + b = 320    (2)

The solution to equation 1 and 2 is:

a = 260, b = 60

The  airplane flies at 260 mi/h with no wind, while the rate of the wind is 60 mi/h.

Find out more on equation at: brainly.com/question/2972832

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4 0
2 years ago
Please help! BRAINLIEST!!!
poizon [28]

Answer:

50. in this graph it is talking about the rate it changed from 1 to 4

Step-by-step explanation:

f(b)-f(a)/b-a

270-120/4-1

50

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3 years ago
A sum of 450 Euros is invested at 3.2% per annum at compound interest. The following formula expresses the value of the investme
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Answer:

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Step-by-step explanation:

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