Why do you ask if it is D ?
Did you sub in x=2 and y=3 ?
That would be the simple way to tell, it would take about 20 seconds with a calculator.
What is the solution to the system? use elimination .
-18.6x+ 17.2y=90.2
14.2x+ 3.4y= -35.8
a.(3,2)
b.(-3,2)
c.(2/3,4/9)
d.(2,3)
IS IT D??
4 answers
How tho and i was asking if it was right.
Sierra -- don't you know how to sub in the numbers for x and y?
First equation:
-18.6x + 17.2y = 90.2
your guess: D, x=2,y=3
so -18.6(2) + 17.2(3) = 90.2
-36.4 + 51.6 = 90.2
is 15.2 = 90.2 ?? , I guess not, so NOT D
-18.6x + 17.2y = 90.2
your guess: D, x=2,y=3
so -18.6(2) + 17.2(3) = 90.2
-36.4 + 51.6 = 90.2
is 15.2 = 90.2 ?? , I guess not, so NOT D
3 answers