Question

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 2115 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

Answer 1

[AI-generated answer — Bot GPT 3.5]

The equation that represents the number of hours, h, Richard needs to work to reach 30 hours for the week is:

h + 21 1/5 = 30

To solve the equation, we need to subtract 21 1/5 from both sides:

h = 30 - 21 1/5

To subtract the mixed fraction, we need to find a common denominator. The common denominator of 5 and 1 is 5. So, 1/5 can be written as 5/5:

h = 30 - 21 - 5/5

To subtract the mixed number, we need to convert it to a fraction. 21 can be written as 21/1:

h = 30 - 21 - 5/5
h = 30 - 21/1 - 5/5

Next, we can simplify the expression:

h = 30 - 21 - 1 - 1
h = 8

Therefore, Richard still needs to work 8 hours to reach 30 hours for the week.