Suppose Alex has 3x stamps, Freddy has 5x stamps. After Freddy gives Alex 10 stamps, Alex has 3x+10 while Freddy has 5x-10
the new ratio is 7 to 9, so we have the equation: (3x+10)/(5x-10)=7/9
9(3x+10)=7(5x-10)
27x+90=35x-70
160=8x
x=20
So Alex has 3*20=60 stamps while Freddy has 5*20=100. Together they have 160
Answer:
i dont know i am so sorry
Step-by-step explanation:
good luck with it though
4ab^5c (3a^4b^2c^3) = 12a^5b^7c^4...answer B
Answer:
The last one doesn't satisfy! for example if y=2 and x=1 then 2<0 false.
Step-by-step explanation:
