Question

Выполнение задания по литературе заняло у иры 3\4часа, а по биологии -на 1\6часа меньше.сколько времени ушло у иры на оба задания?больше это или меньше 1часа?выразить полученную разницу в минутах.

Answer 1

1*3/4=3/4[ч]- ушло на литературу
3/4  - 1/6= 9/12 - 2/12 = 7/12 [ч] - ушло на биологию
3/4 + 7/12 = 9/12 + 7/12 = 16/12 [ч] - на лит-ру и  биологию вместе
60*16/12=80[м]- это общее время в минутах
80-60=20[м]- на столько минут больше чем 1 час ушло на приготовления задания

Answer 2

Calculating Time Spent on Assignments

To calculate the total time Ira spent on both assignments, we can use the given information about the time spent on literature and biology.

Let's denote: - Time spent on literature assignment = 3/4 hours - Time spent on biology assignment = 3/4 - 1/6 hours

To find the total time spent on both assignments, we can add the time spent on literature and biology.

The total time spent on both assignments is: 3/4 hours + (3/4 - 1/6) hours

Calculating Total Time Spent

Let's calculate the total time spent on both assignments.

3/4 hours + (3/4 - 1/6) hours = 3/4 hours + (4/4 - 2/12) hours = 3/4 hours + (12/12 - 2/12) hours = 3/4 hours + 10/12 hours = 3/4 hours + 5/6 hours = (9/12 + 10/12) hours = 19/12 hours = 1 7/12 hours

So, Ira spent a total of 1 7/12 hours on both assignments.

Comparing with 1 Hour

Now, let's compare the total time spent with 1 hour.

1 7/12 hours is greater than 1 hour.

Expressing the Difference in Minutes

To express the difference in minutes, we can convert 1 7/12 hours to minutes.

1 7/12 hours = (1 hour + 7/12 hour) * 60 minutes = (60 minutes + 35 minutes) = 95 minutes

So, the difference between the time spent on both assignments and 1 hour is 95 minutes.