The working equation that represents the number of hours Richard needs to work to reach 30 hours for the week is:
h + 21 1/5 = 30
To solve the equation, subtract 21 1/5 from both sides:
h = 30 - 21 1/5
To subtract fractions, convert 30 to a fraction with a denominator of 5:
30 = 29 5/5
Now subtract:
h = 29 5/5 - 21 1/5
h = 8 4/5
Therefore, Richard needs to work 8 4/5 hours to reach 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
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