Find the soluiton
2x+2y=16
3x-y=4
x+y=8
<u>3x-y=4+</u>
4x=12
x=3
3(3)-y=4
9-y=4
y=5
(3,5)
test them to see if get true statment
obviously the first equatons of 1,2,4 work
1 doesn't work
2, works
4. doesn't work
2 is the same as the first except both euations are just doubled
answer is 2
It would be 13... if I did my math right.
Take 4,000 times 12 to get 48,000. that’s how much A costs.
B is a little harder. you have to take (2,300+300)x12+(4*250). this equals $32,100
the correct answer would be B.
Answer:
1:4
Step-by-step explanation:
(y-y1)=m(x-x1) where m is the slope and (x1 and y1 ) are the points
(y-2) = 3(x-2)
y-2=3x-6 add 2 to each side
y-2+2=3x-6+2
y=3x-4
