For 4 copies, the total cost for preparing and printing will be the same.
Step-by-step explanation:
Let,
p be the number of pages
Company A;
Charges of preparing = $6
Charges of per page print = $2.50
A(p)= 2.50p + 6 Eqn 1
Company B;
Charges of preparing = $4
Charges of per page print = $3
B(p)= 3p + 4 Eqn 2
For equaling the cost;
A(p) = B(p)
[tex]2.50p+6=3p+4\\2.50p-3p=4-6\\-0.50p=-2[/tex]
Dividing both sides by -0.50
[tex]\frac{-0.50p}{-0.50}=\frac{-2}{-0.50}\\p=4[/tex]
For 4 copies, the total cost for preparing and printing will be the same.
Keywords: Addition, division
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