The answer is C. I'm pretty sure of it.
Answer: 9
Step-by-step explanation: You can start by setting this up as an equation, where X is Brooke’s age.
X + 2(x)+ 3 = 30
The 2(X) + 3 signifies the part of the problems identifying that Mia is twice her sisters age plus 3 years.
Combine x’s
3x + 3 = 30
Subtract 3 from both sides to isolate the x term
3x= 27
Divide both sides by 3 to reduce to a single x
X= 9 , which is brooke’s age
Answer:
I think the answer to your question is -1
Answer:
create a graph
Step-by-step explanation:
like this
X Y
-3
0
3
and solve for y
Since you're adding x feet to the length which is 12 feet:
New area: (12+x)10.5
