Answer:
$3.50 each book
Step-by-step explanation:
Okay. So for this question, let's combine like terms on the right side first to simplify the expression. x - 4x is -3x. The expression simplified is this:
-8 - x = -3x.
Now, we add x to both sides to cancel out the x on the left. -3x + x is -2x. That leaves us with -8 = -2x. Divide each side by -2 to isolate the x. -2x/-2 cancels out. -8/-2 is 4. Let's plug in the value as x to see if it works. -8 - 4 is -12. -3 * 4 is -12. -12 = -12. There. x = 4.
You multiply 3 by 9 which is 27
Answer:
isosceles acute
Step-by-step explanation:
We have two sides that are equal so the triangle is isosceles
None of the angles are larger than 90 degrees so non of the angles are obtuse, and none of the angles are 90 degrees, so the triangle is acute ( which means the angles are all less than 90 degrees)
