Step-by-step explanation:
3x+12=45
3x=45-12
3x=33
3x/3=33/3
x=11
Answer:
Please see attached picture for full solution.
Sorry, I'm not sure how to do Q7 :(
Answer:
x = 1
Step-by-step explanation:
Line of symmetry: x = h,
Where h is the x-coordinate of the vertex
Answer: y=3x-7
Explanation:
The y-intercept is -7 and the line is going up by a rate of 3.
9514 1404 393
Answer:
558
Step-by-step explanation:
Let p represent the student population at Edison Jr High. Then we know ...
(4/9)p = 248 . . . . . 248 students is 4/9 of the student population
p = 248(9/4) = 558 . . . multiply the equation by 9/4
558 students attend Edison Jr. High.
