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

Pls help me guys! This is super hard

Mashcka [7]

I count 4 green stars and 6 red stars

ratio of green to red would be
4 green : 6 red

4:6

if you divide both numbers by 2, cause theyre both even

2:3

6 0

2 years ago

Read 2 more answers

Please help and show clear instructions will give brainliest !

Tems11 [23]

Answer:

Answer is 3 because

Step-by-step explanation:

a=2

20*2= 40

40-1 = 39

b = 13

so 39/13 = 3

3 0

2 years ago

Read 2 more answers

A painter earns $15 per hour. What is the minimum number of hours he must work to earn at least $200? Write an inequality to rep

IRISSAK [1]

So you know that he earns $15 per hour so we can write that as 15h, h = # of hours worked

We also know he has to earn AT LEAST $200, so putting all this together we form the inequality(=< means less than or equal to): 15h =< 200

so now we have to solve for h (number of hours worked):

15h =< 200

(divide both sides by 15)

h =< 13 1/3

So, the painter must work a minimum of 13 and 1/3 hours to earn at least $200.

5 0

1 year ago

Read 2 more answers

If the ratio of y to x is equal to 3 and the sum of y and x is 80, what is value of y

Rus_ich [418]

Answer:

y = 60

Step-by-step explanation:

<h3>Step 1: Make sense of the given</h3>

"The ratio of y to x is 3"

This means that, $y\div x=3$

"The sum of y and x is 80"

This means, $x+y=80$

<h3>Step 2: Make use of the facts</h3>

If $y\div x=3$ , then $y = (3*x)$ .

We can plug this into the other equation by substitution:

$x + (3 * x)=80$

This simplifies to:

$4x = 80$

Which we can solve out and get:
$x=20$ .

<h3>Step 3: Plug and Chug</h3>

We solved for x, but we need the value of y.

So, we go back to the equation we first derived: " $y = (3*x)$ ".

And now we substitute the value of x, into this.

$y = (3 * (20))$

By solving this out, we get:
$y=60$

So, the value of y is 60.

3 0

1 year ago

Which expression will simplify to 1? Assume m ≠ 9 and m ≠ -9.

nignag [31]

Answer:

B(m+9/m-9) (m-9/m+9)

7 0

2 years ago

Read 2 more answers