Question

(3год.15хв.+2год 45 хв.):9= (9год.15хв.-6 год.15хв.):5=

Answer 1

Відповідь:

(3год.15хв.+2год 45 хв.):9=40хв.

3год.+2год.=5 год

15хв.+45хв.=60хв.=1 год.

5год + 1год. = 6год.

6год : 9 = 6*60хв : 9 = 360хв. : 9 = 40 хв.

(9год.15хв.-6 год.15хв.):5=36хв.

9год-6год=3год

15хв-15хв=0хв.

3год * 60=180хв.

180хв. : 5 = 36 хв.

Answer 2

To solve the given equations, let's perform the calculations step by step:

1. (3 years 15 minutes + 2 years 45 minutes) divided by 9:

First, let's convert the minutes to hours. There are 60 minutes in an hour.

3 years 15 minutes = 3 years + (15 minutes / 60 minutes per hour) = 3 years + 0.25 hours = 3.25 years

2 years 45 minutes = 2 years + (45 minutes / 60 minutes per hour) = 2 years + 0.75 hours = 2.75 years

Now, let's add these two values:

3.25 years + 2.75 years = 6 years

Finally, divide the sum by 9:

6 years / 9 = 0.6667 years (rounded to four decimal places)

So, (3 years 15 minutes + 2 years 45 minutes) divided by 9 is approximately 0.6667 years.

2. (9 years 15 minutes - 6 years 15 minutes) divided by 5:

Using the same approach, let's convert the minutes to hours:

9 years 15 minutes = 9 years + (15 minutes / 60 minutes per hour) = 9 years + 0.25 hours = 9.25 years

6 years 15 minutes = 6 years + (15 minutes / 60 minutes per hour) = 6 years + 0.25 hours = 6.25 years

Now, subtract the second value from the first:

9.25 years - 6.25 years = 3 years

Finally, divide the result by 5:

3 years / 5 = 0.6 years

So, (9 years 15 minutes - 6 years 15 minutes) divided by 5 is 0.6 years.