h + 21 1/5 = 30
To solve for h, we need to isolate it on one side of the equation.
Subtract 21 1/5 from both sides:
h = 30 - 21 1/5
To subtract the mixed numbers, we need to convert 30 to a mixed number with the same denominator as 1/5.
30 = 29 + 1= 29 5/5 + 1/5 = 29 1/5
The equation becomes:
h = 29 1/5 - 21 1/5
Subtract the whole numbers:
h = 8 1/5
Therefore, Richard needs to work 8 1/5 hours to reach a total of 30 hours for the week.
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.(1 point)
h + 21 1/5 =
h =
hours
1 answer
1 answer