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How much more profit does he earn selling 15 items than 5 items?

How Much More Profit Does He Earn Selling 15 Items Than 5 Items class=

Sagot :

Given that:

[tex]P=0.2x^3-10[/tex]

Substitute 15 for x in the equation of P to find the profit earned by selling 15 items.

[tex]\begin{gathered} P(15)=0.2(15)^3-10 \\ =665 \end{gathered}[/tex]

Substitute 5 for x in the equation of P to find the profit earned by selling 5 items.

[tex]\begin{gathered} P(5)=0.2(5)^3-10 \\ =25-10 \\ =15 \end{gathered}[/tex]

Profit more earned by seeling 15 items than 5 items

[tex]\begin{gathered} =P(15)-P(5) \\ =665-15 \\ =650 \end{gathered}[/tex]

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