Answer:
Step-by-step explanation:
2x + 5y = 6 --------( 1 )
5x - 2y = 9 --------( 2 )
_____________
( 1 ) x 5 => 10x + 25y = 30 -----------( 3 )
( 2 ) x 2 => 10x - 4y = 18 ----------- ( 4 )
______________
( 3 ) - ( 4 ) => 0 + 29y = 12
Substitute y in ( 1 ) =>
18)
h/4 = 12/h
h^2 = 48
h = 6.93
19)
x/ 12 = 3/x
x^2 = 36
x = 6
y^2 = 144 - 36
y^2 = 108
y = 10.39
Answer16 dimes and 4 nickels
Step-by-step explanation: look at answer