8 The square of a number is 12 less than 7 times the number. What is the number?
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Answer:
The number of sundaes sold are 36.
Step-by-step explanation:
<em>The cost of each sundae is $2 and the cost of each banana splits is $3.</em>
<em>The number of sundae sold be "x" and banana split be "y".</em>
Thus, the total amount spent is,
=
The total amount spent is given to be $156. Thus,
156 =
It is also given that, the shop sold 8 more sundaes than banana splits. In equation form,
,
Inserting this value of y in above equation, we get,
156 = =
Thus, x = 36 = number of sundae sold.