Answer:
Step-by-step explanation:
We want to find the sum of
We can rewrite this as
This becomes;
Recall that;
This implies that;
Combine like terms:
Grace is 7 years older than Elena. Grace is also 15 years old.
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Answer:
Mr. Smith collects $5748 from selling the can.
Step-by-step explanation:
Given total number of cans =
Selling price of one can = $15.
Now remaining number of cans = total number of cans - sold number of cans =
For remaining number of cans he gives a discount of 20% each,
∴ Selling price of one can =
∴ Selling price of 54 cans =
So total money he earns = .
Thus Mr. Smith earns $5748 by selling the cans.