Multiple Choice Please select the best answer and click subm

Multiple Choice: Please select the best answer and click \"submit\". A consultant needs to make at least $720 this week. She earns $120 for each new written piece and $60 for each review. Which of the following inequalities represents the possible combinations of reviews and new written pieces that she must complete? 120x + 60y greaterthanorequal 720 120x + 60y lessthanorequal 720 120x + 60y 720

Solution

Solution:

It is given that the price of written new piece = $120

and therefore total earning for x written new piece = $ 120x

Similerly

It is also given that the price of review = $60

and therefore total earning for y each review = $ 60y

total combination ( 120x + 60y) of earning must be atlease 720 or more

therefore

120x +60 720

is the required inequality

Option A is correct