(4,-1) turns into (1,4) because the equation for that is (x,y)->(y•-1,x)
Answer:
w = (cv +dy) / (cb - ad)
Step-by-step explanation:
Multiply through by c
aw + y = c(bw + v) / d Multiply by d
d(aw + y) = c(bw + v) Remove the brackets
daw + dy = cbw + cv Subtract dy from both sides.
daw +dy - dy = cbw + cv -dy
daw = cbw + cv - dy Subtract cbw from both sides
daw - cbw = cbw - cbw + cv - dy
daw - cbw = cv - dy Isolate W on the left.
w(da - cb) = cv - dy Divide by cb - ad on both sides.
w = (cv - dy) / (ad - bc) Answer
Question A: 14
Question B: 30min
For the first one I believe that the numbers are both odd and I am not sure about the second one sorry
Answer:
Step-by-step explanation:
3.25/.8=4.0625
multiply that by 5.6
$22.75 is your answer