300 mi /20 sec = ? Mi /1 min
1 answer:
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Let us say... . the machine sold packages of chips at the amount of "p",
and the machine also sold, last month as well, an amount of "c" candies
now, last month the machine sold total 298 items
that yielded a revenue of $139.80
so...whatever "p" and "c" are, we know that, their sum for last month is,
298, so,
p + c = 298
how much revenue in sales of chips? well, they're 0.40 per package,
so, whatever "p" is, the machine sold 0.40 * p or 0.4p in revenue
how much for the candies? well, they're 0.50 for each, so
whatever "c" is, 0.50 * c or 0.5c in revenue
we know, their total revenue yield was 139.80
so
0.4p + 0.5c = 139.8
now... do substitution from the 1st equation on the 2nd one, and solve for "p", or packages of chips
that is
and the machine also sold, last month as well, an amount of "c" candies
now, last month the machine sold total 298 items
that yielded a revenue of $139.80
so...whatever "p" and "c" are, we know that, their sum for last month is,
298, so,
p + c = 298
how much revenue in sales of chips? well, they're 0.40 per package,
so, whatever "p" is, the machine sold 0.40 * p or 0.4p in revenue
how much for the candies? well, they're 0.50 for each, so
whatever "c" is, 0.50 * c or 0.5c in revenue
we know, their total revenue yield was 139.80
so
0.4p + 0.5c = 139.8
now... do substitution from the 1st equation on the 2nd one, and solve for "p", or packages of chips
that is
Steps in the process of completing the square used to solve the given equation were discussed.
Given equation is:
, which is a quadratic equation
Any equation of the form is called a quadratic equation where
.
Taking all terms to the left side of the equation:
To complete the square let us add 2 both sides
.....(1)
So, equation (1) is the required answer.
Hence, steps in the process of completing the square used to solve the given equation were discussed.
To get more about quadratic equations visit: