Question

Sally bought 4 shirts and 6 pairs of pants and spent $285. Mary

bought 7 shirts and 3 pairs of pants and spent $255. How much were
the shirts and the pants?

Answer 1

Set up:

4s+6p=285

7s+3p=355

Solve:

4s+6p=285

(7s+3p=355)*-2

4s+6p=285

+

-14s-6p=-710

=

-10s+0p=-425

/10

s=42.5

solve:

7(42.5)+3p=355

297.5+3p=355

3p=57.5

p=19.17

Shirts: $42.5

Pants: $19.17