Answer:6x+126in^2
Step-by-step explanation:
a =15 long
b=x. Wide
A=ax
A=15x represenrs picture area
Add on each side of picture 3 in
a1=15+6=21 in
b1=x+6
Calculate area
A1=a1b1
A1=21(x+6)
Area of frame = A1-A
Area of frame=21(x+6)-15x=21x-15x+126=6x+126in^2
Answer:
The solution is the point (18,0)
Step-by-step explanation:
we have
-----> equation A
-----> equation B
Solve the system by substitution
substitute equation B in equation A
solve for x
Adds (1/3)x both sides
Adds 6 both sides
<em>Find the value of y</em>
substitute the value of x in equation A or equation B
therefore
The solution is the point (18,0)
Let's see first x-y=-3. You can find x and x=-3+y
Then you replace x in x+3y=5
-3+y+3y=5
4y=8
y=2 But you have to find x too.
x=-3+2 x=-1
The answers are x=-1, y=2
just solve both sides making 21=15 then see if the statement is true
this one isn't true :)
Answer:
-12-3x=-3x+12
Step-by-step explanation: