For now I don't know the answer to this problem of yours.
6-3a+10b^2-2a-4b^2-3
-5a+6b^2+3
Answer:
22.5 = x
Step-by-step explanation:
I'm using Pythagorean theorem.
A^2+B^2=C^2
18^2+13.5^2=C^2
324+ 182.25=C^2
506.25=C^2 ( now square root both sides)
22.5=c
Answer:
1135.38
Step-by-step explanation:
100%->1015
100-6=94
94%->954.1
--------------------------------------------------
100%->954.1
119%->1135.379
≈1135.38
The answer 10x+7.5y=420 is 56