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

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
21
1
5
  hours. Complete the working equation that represents the number of hours,  h
ℎ
 , Richard needs to work to reach 30 hours for the week and solve the equation.(1 point)
h + 2115 =
ℎ
 
+
 
21
1
5
 
=
 
             h =
ℎ
 
=
  hours

GPT-4o mini · Answer

To find the number of hours $ h $ that Richard needs to work to reach a total of 30 hours for the week, we can set up the following equation: $$ h + 21.5 = 30 $$ Now, we'll solve for $ h $: 1. Subtract $ 21.5 $ from both sides of the equation: $$ h = 30 - 21.5 $$ 2. Calculate the right side: $$ h = 8.5 $$ So, Richard needs to work $ \mathbf{8.5} $ hours in the remaining days of the week.