During weekdays, Richard is working as a part-time library assistant at a university he needs to work for a total of 30 hours a week for the first three days of the week. He worked 21 1/5 hours, complete the working equation that represents the number of hours H, Richard needs to work to reach 30 hours for the week and solve the equation, what is 8+21 1/5 equal and what does H equal how many hours
To find the number of hours Richard needs to work to reach 30 hours for the week, we can set up the equation:
H = 30 - 21 1/5
We can simplify 21 1/5 as a fraction:
21 1/5 = 21 + 1/5 = 21 + 1/5 = 21 + 1/5 = 21 + 0.2 = 21.2
Now we can substitute this value back into the equation:
H = 30 - 21.2
H = 8.8
Therefore, Richard needs to work 8.8 hours to reach 30 hours for the week.
To find the sum of 8 and 21 1/5, we can add them:
8 + 21 1/5 = 8 + 21.2 = 29.2
So, 8 + 21 1/5 = 29.2.