Concept explainers
(a)
To write: an equation to find the profit per plant sold.
(a)
Answer to Problem 11PT
The equation is:
Explanation of Solution
Given:
The school earns $57.60 when 12 plants are sold.
Calculation:
The amount earns is denoted y and number of plotted plant is denoted by x
Now, if there is direct variation then there is some constant variable k such that it satisfies the equation:
So, put the value of
Divide both sides by 12.
Use k to write an equation.
Conclusion:
Therefore, the equation is:
(b)
To find: The total profit earned when 65 plants are sold
(b)
Answer to Problem 11PT
The total profit earned when 65 plants are sold is $312
Explanation of Solution
Calculation:
Now, in order to calculate profit if 65 plants are sold, put the value of
Conclusion:
Therefore, the total profit earned when 65 plants are sold is $312
Chapter 8 Solutions
Pre-Algebra Student Edition
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