X=3
Algebra is not one of my fav subjects in math but I do know this!
when solving what you do to one side you do to the other so
if 3x-2=7
the 2 is negative so you change that -2 into a positive
so add 2 to both sides
7+2=9
3x=9
now divide both sides by 3
X= 9/3 (nine over three)
now divide 9 by 3
9÷3=3
x=3
(Hope this helps!)
Multiply 10 by the 12 and add 5
125/12
Answer:
The answer is "Option c".
Step-by-step explanation:
Please find the complete question and its solution in the attached file.
40n-15 can be broken down by
5(8n-3)
9514 1404 393
Answer:
D. 36 units
Step-by-step explanation:
Using the distance formula, we find the length of AB to be ...
d = √((x2 -x1)² +(y2 -y1)²)
d = √((7-(-2))² +(-3-9)²) = √(81 +144) = √225 = 15
The line BC is horizontal, so its length is the difference of the x-coordinates:
BC = 7 -(-2) = 9
The line AC is vertical, so its length is the difference of the y-coordinates:
AC = 9 -(-3) = 12
The sum of the lengths of the sides of the triangle is ...
P = 15 + 9 + 12 = 36
The perimeter is 36 units.
