Question

it costs x cents to print the first 600 copies of a Newspaper. it costs
$x \times \frac{y}{10}$
ceents for every copy after the first 600.how much does it cost to print 1,500 copies of thr newspaper​

Answer 1

Total copies 1500

1500 - 600 = 900

first 600 copies cost = 600x

next 900 copies cost =

$\frac{xy}{10} \times 900$

=

$90xy$

total cost = 600x + 90xy