(7x)-6=-12 7 times a number is 7x or 7 times any variable. Six less than that is subtracting by 6 then it all equals -12
2. 112
3. 0.08
4. idk if there is a decimal between the 2 and 4 if there is your answer is 4.08 if there isn't your answer is 40.8
7. 0.04
8. 19.78
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
The answer is four. It's like asking to give the least common denominator
Answer:
11/6
Step-by-step explanation:
16/3 - 7/2 = 16/3 x 2/2 - 7/2 x 3/3 = 32/6 - 21/6 = 32-21/6 = 11/6