Answer:
x=4200, y=2700
Step-by-step explanation:
let x be first account
y the second
x+y=6900
0.03x+0.08y=342
solve by addition/elimination)
multiply first equation by 0.03
0.03x+0.03y=207 subtract from second
0.03x+0.03y-0.03x-0.08y=207-342
0.05y=135
y=2700, x=4200
Step-by-step explanation:
In one second Jenny walks = 2 m
In 9seconds she can walk = 9× 2m
= 18m
He made his error in step 2 he already flipped 5/8 in step one then he flipped it again in step 2
