Answer:
Substituting 4 for x:
ƒ(4) = 3(4 - 5)
ƒ(4) = -3
So, ƒ(4) = -3
Step-by-step explanation:
Answer:
-2x+1
Step-by-step explanation:
Take 63.92 divided by 8, you will get the price of 1 toy that is 7.99
Answer:
x=9, so the answer is 9
Step-by-step explanation:
First collect like-terms, divide both sides, and get nine
6x=2x+36 > 6x-2x=36 > 4z=36 then divide and get nine :)
Answer:
Step-by-step explanation:
The sum of the angles on a straight line is 180 degrees. Therefore,
Angle XYZ + angle MYZ = 180
Angle XYZ + 115 = 180
Angle XYZ = 180 - 115 = 65 degrees
The sum of the angles in a triangle is 180 degrees. It means that
Angle XZY + angle YXZ + angle MYZ = 180
Therefore,
4k + 5 + 6k + 10 + 65 = 180
4k + 6k + 5 + 10 + 65 = 180
10k + 80 = 180
10k = 180 - 80 = 100
Dividing the left hand side and the right hand side of the equation by 10, it becomes
10k/10 = 100/10
k = 10