Answer:
Im not sure but i believe 60
Step-by-step explanation:
30x2=60
Answer: (-2, 8)
Explanation:
Plug x = -2 into the second equation. Isolate y.
5x+3y = 14
5(-2)+3y = 14
-10+3y = 14
3y = 14+10
3y = 24
y = 24/3
y = 8
We have x = -2 lead to y = 8.
Therefore, the ordered pair (x,y) = (-2,8) is the solution to this system.
Answer:
4.08%
Step-by-step explanation:
% error = error/actual length × 100
Error = 20.4-19.6
= 0.8
% error = 0.8/19.6 × 100
= 4.08%
This means the graph or the equation has no solution
28/x = 40/100
Cross multiply
40x = 28(100)
40x = 2800
Divide both sides by 40
x = 70 students