word problem(algebra)
posted by kimi on .
mary has y m of cloth.she used 2 m to sew a skirt.she used the remaining cloth to make 5 jackets.
(a) find the amount of material that was used to make each jacket in terms of y.
(b) if she has 17 m of cloth.how much material was used for each jacket?

a. Bal. = ym  2m.
Amt per jacket=(ym2m)/5 = m(y2) / 5.
b. Amt per jacket = (17m2m) / 5 = 15m / 5 = 3m. 
Cloth Mary has = ym
used (skirt) = 2m
Used for jacket = 5
A.) ym2m/5 or the substitute m(y2)/5
B.)Substitute 17 to ym
(because that's the cloth Mary has)
= (17)2m/5
= 15m/5
= 3m