Answer:
$120 in the ratio3:5
sum of ratios = 8
part1: 3/8*120=$45
part2 : 5/8*120=$75
The fuel for a machine is a mixture of 8 parts petrol to one part oil.
How much oil is needed to make 1 litre of fuel?
ratio : 8:1
sum of ratios = 9
oil does it take to make 1 liter of fuel : 1/9*1=1/9 L of oil≈0,11111L≈111,11mililiter oil
Explanation: