Answer:
Step-by-step explanation:
Multiply first equation by 2.
4x+6y=34
3x+6y = 30
Subtract the equations we get,
x = 4
SUBSTITUTE x in given 1st equation.
2(4)+3y =17
3y=17-8=9
y=3
1215
K(E) = MV^2
n = 1/2
4/5(1/2) - 1/5 = 2/5(1/2)
4/10 - 2/10 = 2/10
the second one
hope this help byee byee