Answer:
x/y= −3 => x= −3y
x²/y²+y²/x²=y²/x²
Step-by-step explanation:
Evaluate xy, then set it equal to −3.
x=−3y
Evaluate x²/y²+y²/x².
y²/x²
Answer:
2 + 2 = 4
OR
2 + 2 = 22
Step-by-step explanation:
Heh
Answer:
Step-by-step explanation:
Assuming that for each option, you play the same number of games,x
Let y represent the cost of playing x games using option A
Option A is to buy a membership card and pay $2 every time you go to the gym. The membership card costs $20. It means that
y = 20 + 2x
Let z represent the cost of playing x games using option B
Option B is to pay $4 each time you go. It means that
z = 4x
To determine how many games will be played before cost of option A equal to the cost of option B, we would equate y to z. It becomes
20 + 2x = 4x
4x - 2x = 20
2x = 20
x = 20/2 = 10
It will take 10 games for both to be the same
Answer:
256
Step-by-step explanation:
two choices for each question so
2^8=256
Answer:
20%
Step-by-step explanation:
12 bottle is 60 rupees
each sold 6 ruppes
so 12 bottle cost 72 ruppes
12*100/60 = 20%