Question

Happy Feet Rentals charges $14 per day for snorkel gear and $16 per day to rent a wetsuit. Sam and Monica paid a total of $300 to rent a set of snorkel gear and a wetsuit each for a few days. Monica rented them for 2 days less than Sam. The following equation represents this situation, where x represents the number of days Sam rented a surfboard and a wetsuit.

14x + 16x + 14(x − 2) + 16(x − 2) = 300

What is the total amount Sam paid to rent the snorkel gear and wetsuit?

$80

$150

$180

$240

Answer 1

Distribute.

14x + 16x + 14(x − 2) + 16(x − 2) = 300

14x + 16x + 14x − 28 + 16x − 32 = 300

Combine like terms.

14x + 16x + 14x − 28 + 16x − 32 = 300

60x − 28 − 32 = 300

60x - 60 = 300

Solve for x.

60x - 60 = 300

60x = 360

x = 360 /60

x = ?

Answer 2

6

Answer 3

?

Answer 4

@jazy

Answer 5

Right! (:

Answer 6

so now what

Answer 7

cause thats not the answer

Answer 8

Check out @chemwile exxplanation here: http://openstudy.com/study#/updates/4f52cddae4b019d0ebb0615c

Answer 9

180 :)

Answer 10

i thought so :)

Answer 11

Yep, sorry I didn't finish explaining it myself (:

Answer 12

its ok