Answer:
(6,17)
Step-by-step explanation:
2x+5=3x-1
-3x -3x
-x+5=-1
-5 -5
-x=-6
^divided by -1 on both sides
x=6
y=2x+5
y=(2)(6)+5
y=17
A minus x plus b equals c
Okay, first off negative is well negative and since there is no other negatives, -5/7 is least (making it go first). Second, what is smaller 3/5 or 2/9, remember that the bigger the denominator the smaller the piece.
[/] [/] [/] [] [] = 3/5
[/] [/] [] [] [] [] [] [] [] 2/9
At the end it should be -5/7, 2/9 , 3/5. This method can go the same for problems like these...Hope it helps!
Answer:
3.14 cm²/min
Step-by-step explanation:
rate of increasing of radius, dr/dt = 0.01 cm/min
r = 50 cm
Area of plate, A = πr²
rate of increase of area
dA/dt = 2πr dr/dt
dA/dt = 2 x 3.14 x 50 x 0.01
dA/dt = 3.14 cm²/min
Thus, the increase of rate of area is 3.14 cm²/min.
To solve for X you must get x by itself so let's get started
-4x+13=6x-7
subtract 13 from both sides
-4x=6x-20
subtract 6x from both sides
-10x=-20
divide both sides by -10
x=2
to check if this is correct plug in x into original equation
-4 (2)+13=6 (2)-7
-8+13=12-7
5=5
answer x=2 holds true :)
