Question

Петя играл на компьютере 7/12 ч что на 1/3 x меньше времени потраченным на выполнение домашнего задания по математике.Сколько всего часов он потратил на игру на компьютере и выполнение домашнего задания по математике

Answer 1

1. Время на математику:   7/12+1/3=7/12+4/12=11/12(час)
2. Общее время:   7/12+11/112=18/12 =1 6/12=1 1/2(час), то есть полтора часа

Answer 2

1ч = 60мин
60:12=5
5*7=35мин (игра на компьютере)

35=1/3x
x=35*3
x=105мин (дз по математике)

Answer 3

Problem Analysis

We are given that Petya played on the computer for 7/12 of an hour, and this is 1/3 less time than he spent on doing his math homework. We need to find the total time Petya spent on playing on the computer and doing his math homework.

Solution

Let's assume that the time Petya spent on doing his math homework is x hours. According to the given information, Petya played on the computer for 7/12 of an hour, which is 1/3 less than the time spent on math homework.

To find the time spent on playing on the computer, we need to subtract 1/3 of x from x. This can be calculated as:

Time spent on playing on the computer = x - (1/3)x

To find the total time spent on playing on the computer and doing math homework, we need to add the time spent on playing on the computer to the time spent on math homework:

Total time spent = (x - (1/3)x) + x

Simplifying the equation:

Total time spent = (2/3)x + x

Now, we can calculate the total time spent by substituting the value of x.

Calculation

Since we don't have the value of x, we cannot calculate the exact total time spent. However, we can provide the equation to calculate it once we have the value of x.

The equation to calculate the total time spent is:

Total time spent = (2/3)x + x

Please provide the value of x so that we can calculate the total time spent by Petya on playing on the computer and doing his math homework.