Michael is making brownies for a bake sale. The ingredients he needs for brownies costs $1.50 and he is selling the brownies for $4.50 each. To find his profits, Michael writes the expression 4.5x - 1.5. Circle what the variable x represents. a. Cost of materials c. number of brownies sold b. Total amount of sales d. profit from the sales
Mathematics · College · Thu Feb 04 2021
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Answer: c. number of brownies sold
given that:- ingredients cost of brownies=$1.5
selling price of 1 brownie= $4.5
expression Michale writes=4.5x-1.5
to find the profit, Michale needs to subtract his expenses from his total sales
we know total expenses are cost of ingredients that is $1.5
and total sales we need to find, if we multiple the cost of 1 brownie with total brownies sold then we can get total sales
but we actually don't know how much brownies does he sold then we let the total amount of brownies sold are x
then profit=cost of one brownie*total sold brownies - expenses
profit= 4.5x-1.5
hence, x shows the amount of total brownies sold