Saeed can order socks online from a site that charges $7.50 per pair and offers free shipping. A second site charges off $6.00 per pair and $7.50 for shipping. How many pairs of socks would Saeed have to order for the cost at both sites to be the same?

Question

Jean Mullins

Mathematics

18 June, 00:53

Saeed can order socks online from a site that charges $7.50 per pair and offers free shipping. A second site charges off $6.00 per pair and $7.50 for shipping. How many pairs of socks would Saeed have to order for the cost at both sites to be the same?

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Jasmine Nash · Answer 1

I believe it's 5 pairs. The first expression can be written as 7.5p where p is the number of pairs to be purchased. The second expression is 6p + 7.50. Set the two expressions equal to one another and solve for p to get 5 pairs.