michelle is 3 times as old as her sister tina. Tina is 4 years younger than michelle. How old is tina now?
1 answer:
Answer:
Tina's age = 2 years
Step-by-step explanation:
Tina's age = x
Michelle's age = 3 * x = 3x
Tina is 4 years younger than Michelle.
x = 3x - 4
Add 4 to both side
x +4 = 3x
Subtract x from both sides
4 = 3x - x
4 = 2x
Divide both sides by 2
4/2 = x
2 = x
Tina's age = 2 years
You might be interested in
Answer: 4
Step-by-step explanation:
(Can someone please answer my math question)
Answer:
W, I believe
Step-by-step explanation:
196, because 20-4 equals to 16 and 16 times 12 equals 192, and 192 minus 6 is equal to 186.
72 degrees
*********************************************************************
Differentiating both sides of
with respect to <em>x</em> yields (using the chain rule)
Solve for d<em>y</em>/d<em>x</em> :
The answer is then D.
