Answer:
x=9
y=3
Step-by-step explanation:
since all three sides of an equlateral triangle are equal:
3x+y=30 then y=30-3x
4x-2y=30
4x-2(30-3x)=30
4x-60+6x=30
10x=90
x=9
3x+y=4x-2y
x=3y
y=3
Answer:
the 117th number value is-->582
18%, because 50 - 100, meaning 1 is 2% so 9x2 is 18
Answer:
336
Step-by-step explanation:
Given


Required
Determine number of first, second and third;
The first position can be any of the 8 runners
The second position can be any of the remaining 7
The third positioncan be any of the remaining 6


Answer:The slope is -1/7
Step-by-step explanation:
2-3=-1
3-(-4)=7
-1/7