ravi wants to earn at least $81 trimming trees. he charges $8 per hour and pays $7 in equipment fees. what…

ravi wants to earn at least $81 trimming trees. he charges $8 per hour and pays $7 in equipment fees. what are the possible numbers of hours ravi could trim trees? use t for the number of hours. write your answer as an inequality solved for t.

ravi wants to earn at least $81 trimming trees. he charges $8 per hour and pays $7 in equipment fees. what are the possible numbers of hours ravi could trim trees? use t for the number of hours. write your answer as an inequality solved for t.

Answer

Explanation:

Step1: Set up the inequality

Ravi earns $8 per hour, so the money he earns from working $t$ hours is $8t$. He pays $7 in equipment fees. He wants to earn at least $81. So the inequality is $8t - 7\geq81$.

Step2: Add 7 to both sides

To isolate the term with $t$, we add 7 to both sides of the inequality: $8t-7 + 7\geq81 + 7$, which simplifies to $8t\geq88$.

Step3: Divide both sides by 8

Dividing both sides of the inequality $8t\geq88$ by 8 gives $t\geq11$.

Answer:

$t\geq11$