Ask question

Ask question

All categories

2 years ago

9

Long ago, people decided to divide the day into units called hours. They chose 24 as the number of hours in one day. Why is 24 a

more convenient choice than 23 or 25?

1 answer:

jasenka [17]2 years ago

7 0

Because 24 is an even number. This means it has more factors and is easier to divide into integers than 23 or 25.

You might be interested in

Please help! Im begging!

bekas [8.4K]

Alright, so we know that there are 7 days a week with 24 hours per day.

24x7= 168 hours a week.

Convert the problem to an equation using the percentage formula: P% * X = Y.

Let's take the 40% that is Sleep and use it in the percentage formula with the 168 hours.

40%x168= roughly 67 hours.

Hope this helped!

7 0

2 years ago

The Arkansas State

klio [65]

The Arkansas state capitol building is a smaller version of the us capitol building the us capitol is 752 ft long and is 288 ft tall the Arkansas state capitol is 564 ft long what is the height of the Arkansas state capitol

7 0

2 years ago

Let f(x) = x+2/x+6 <br> f^-1(-6) =

GREYUIT [131]

We can explicitly find the inverse. If $f^{-1}(x)$ is the inverse of $f(x)$ , then

$f\left(f^{-1}(x)\right) = \dfrac{f^{-1}(x)+2}{f^{-1}(x)+6} = x$

Solve for the inverse :

$\dfrac{f^{-1}(x) + 2}{f^{-1}(x) + 6} = x$

$\dfrac{f^{-1}(x) + 6 - 4}{f^{-1}(x) + 6} = x$

$1 - \dfrac4{f^{-1}(x) + 6} = x$

$1 - x = \dfrac4{f^{-1}(x) + 6}$

$f^{-1}(x) + 6 = \dfrac4{1-x}$

$\implies f^{-1}(x) = \dfrac4{1-x} - 6$

Then when x = -6, we have

$f^{-1}(-6) = \dfrac4{1-(-6)} - 6 = \dfrac47-6 = \boxed{-\dfrac{38}7}$

Alternatively, we can first solve for x such that $f(x) = -6$ . Then taking the inverse of both sides, $x = f^{-1}(-6)$ . (The difference in this method is that we don't compute the inverse for all x.)

We have

$\dfrac{x+2}{x+6} = -6$

$x + 2 = -6 (x + 6)$

$x + 2 = -6x - 36$

$7x = -38$

$\implies x = \boxed{-\dfrac{38}7}$

8 0

2 years ago

In a college philosophy class during the fall semester, there were 323 students,42% of whom were male and the rest of whom were

11111nata11111 [884]

C i think...........

7 0

2 years ago

Siobhan wants to measure the mass of a bag of flour. what should she use?

zvonat [6]

Answer:

she should use a scale 8)

Step-by-step explanation:

8 0

3 years ago