Answer:
9 and 42
Step-by-step explanation:
12b = 6e ➡ 2b = 1e (b : beads, e : eraser)
we can conclude from the equation we created that the ratio of bead to eraser is 1/2
therefore 18b = 9e
and
42 × 2 =84
84b = 42e
Answer:
-2 <em>1/3</em>
Step-by-step explanation:
((4 * 3) - (-2) /(-2*3)
(12 + 2 ) / (-2 * 3)
14 / -6
-2 <em>1/3</em>
Answer:
A. (-1,3)
Step-by-step explanation:
To solve this problem, enter equation (i) in equation (ii)
2x+y=1 (i)
y= 1 -2x
3x-y=-6 (ii)
3x - (1-2x) = -6
3x - 1 +2x = -6
5x = -5
x = -1. (iii)
Replace (iii) in (i) and clear y
2(-1) + y = 1
y = 1+2
y = 3
The solution is Option A. (-1, 3)
The number of intersections of the graphs of the equations is the number of solutions of the system.
The system is:
(1/2)x + 5y = 6
3x + 30y = 36
If you multiply the first equation times 6 you get to:
6(x/2) + 6(5y) = 6(6)
=> 3x + 30y = 36
And that is the same second equation, that means that the system is indetermined.
Being the two equations the same, the two graphs are superposed.
So there are infinite intersections.
Is there more to the question? Because it could be any hours..