Question

Which ordered pair is a solution to the system of linear equations 1/2x - 3/4y = 11/60 and 2/5x + 1/6y =3/10 ?

A. ( 1/5, -2/3 )

B. ( 1/5, 2/3 )

C. ( 2/3, -1/5 )

D. ( 2/3, 1/5 )

Answer 1

D

Explanation:

i multiplied the first equation by 60 to eliminate the fractions: 30x - 45y = 11

i multiplied the second equation by 30 to eliminate the fractions: 12x + 5y = 9

I graphed them and (2/3, 1/5) is the intersection of both lines