<span>-4y + x = 28
<span> y + 2x = 2
hope this helped :)
alisa202</span></span>
It takes the faster pump 12 minutes to fill the tank.
Since the faster truck can produce 60% more than the other truck. 60% of 20 minutes is 12.
20 bicycles. two tires per one bike. 2*10=20
