Three friends go grocery shopping together, and each buys the same kind of strawberries. Akio buys 2 pounds (lb) and pays $1.50.
Gordon buys 3 pounds and pays $2.25. Maria buys 4 pounds and pays $3.00. Identify the graph and unit price that represent the strawberry costs.
2 answers:
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Let the first integer be . So, the next even number is
Let's translate the formula: the square of the second is , twice the first is
. So, the equation is
Expand the square to get
The solutions to this equations are
So, the possible consecutive even numbers are