Answer:
2:7
Step-by-step explanation:
10+15+6+4=35
given dogs=10
10/35=2/7
2:7
let's call airplanes "a" and helicopters "h".
The total number of models is 35. This means that a+h=35
4 times as many model airplanes as model helicopters. This means a=4h.
we can substitute this into the previous equation:
4h+h=35
5h=35
dividing by 5:
h=7
so he has 7 helicopters and 4*7=28 airplanes
Your answer is y= 0/14 + 6
