Answer: 7°
Explanation:
FBD = EBC
2x + 3 = 9x - 11
-7x = -14
x = -14/-7
x = 2
EBC = 9(2) - 11 = 18 - 11 = 7°
Have you got your answer yet?
In order to determine the number of boys in the class, first, we set-up an algebraic equation. Let x = number of boys in the class. The equation is then: x + 4x = 45. This is because the number of girls is 4 times greater than the number of boys. After solving the algebraic equation, it is then determined that there are 9 boys in the Chemistry class.
Answer:
-6
Step-by-step explanation:
The pattern here is that you substract 15 every time you move a number (left to right) , therefore: 9-15 = -6
If you have any questions about the way I solved it, don't hesitate to ask me in the comments below =)