If a triangle has sides 6,7, 8, what is the perimeter of the triangle?
Perimeter equates to the sum of the length of the sides. The sum of sides is 21.
Find the value of X: X-2= 2X + 9
Add 2 to both sides in order to get X by itself. Now you have X=2X + 11. To get 11 by itself, subtract 2X from both sides. -X=11. Isolate X so the variable is positive; to do this, multiply each side by -1. Now you get X=-11
X is greater than 4 but less than 9, what are two whole numbers X could be?
Whole numbers are numbers without fractions or decimals. Possible answers are 5,6,7,8