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cestrela7 [59]
3 years ago
14

If someone sleeps 8 hours a day for 75 years how many hours did that person sleep in his lifetime?

Mathematics
1 answer:
ra1l [238]3 years ago
7 0
The person sleeps 8 hours a day.

There are 365 days in a year and 366 days in a leap year.

A leap year occurs every 4 years.

If we divide 75 by 4, we get 18.75. This number represents how many leap years occurred in 75 years. So, the person experienced approximately 19 leap years.

19 leap years has 6954 days.

The other 56 years, which have 365 days each year, have a total of 20,440 days.

That's a total of 27,394 days.

27,394 × 8 = 219,152 hours

This is approximately 24 years or 9,131 days.
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1,868 to the nearest hundred
Citrus2011 [14]

Answer: 1,900

Step-by-step explanation:

You would round up to 1,900 because in the tens place is a 6 and when you have a number greater than or equal to 5 you round up. Hope this helps!

7 0
2 years ago
Can some one plz answer this question, factories y^2-8y+12
Blababa [14]

Answer:

(y - 2)(y - 6)

Step-by-step explanation:

To factorise

Consider the factors of the constant term (+ 12) which sum to give the coefficient of the y- term (- 8)

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since - 2 × - 6 = + 12 and - 2 - 6 = - 8, hence

y² - 8y + 12 = (y - 2)(y - 6)

6 0
3 years ago
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5 0
2 years ago
Read 2 more answers
Determine if the two lines are parallel, perpendicular, or neither. Show the work used to get your answer
vichka [17]

Answer:

Perpendicular

Step-by-step explanation:

[1] We need to find the slopes of both lines! First, we will put them into standard form and then solve.

Standard form: y=mx+b

(1) 10x + 2y = 4

(subtract 10x from both sides)

2y = -10x + 4

(divide both sides by 2)

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The slope is 5

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(add x to both sides)

5y = x - 5

(divide both sides by 5)

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The slope is one-fifth

[2] Then, we need to determine if they are parallel, perpendicluar, or neither.

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() Line 1 has a slope of 5 and line two has a slope of one-fifth. These are exact opposites so the lines are perpendicular.

(I hope this is correct and helped, have a nice day!)

3 0
2 years ago
What are the x and y intercepts of 5x-4y=40
Debora [2.8K]
<span> 5x-4y=40

</span><span>x intercepts, y = 0
</span>5x =40
x = 8

y intercepts, x = 0
-4y =40
y = -10

answer 
x intercepts (8,0)
y intercepts (0, -10)
3 0
3 years ago
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