Answer:
Step-by-step explanation:
x=-1-2y
-2-4y-3y-12=0
-7y=14
y=-2
x=3
1. analyze data presented
It is not d because it is not greater than 80 degrees
it is not a because it is clearly not 10 degrees
making system of equations
8x+(4x+60)=180
addition
12x+60=180
move sixty to the other side
12x=120
division
x=10
Angle BEC=*x, so 8x=80
Answer: 80 degrees
Answer:
B
Step-by-step explanation:
perpendicular means that the slope is the opposite of the first function, which -5/8 is the negative reciprocal of 8/5
Answer:
A = 138 ft^2
Step-by-step explanation:
the height is 2x+9
Let x =7
The height is 2(7)+9 = 14+9 = 23
The area is l*w
A = 6*23 =138 ft^2
Answer:
He missed 3 questions (which is a score of 22/25 that equals 88%)
Step-by-step explanation:
This is just what I've taught to judge this by "eye level" how to solve questions like these. In this case, since it's a 25 question test, if you divide 25/100 that means each question was 4 points.
So if 20/25 is 80% and 25/25 is 100%, so the answer is between that range.
Hope it helps.
