A worker is using a particle accelerator. described as - 5x+2y=18, where x is time and y is velocity in kilometer per hour. Determine when the particle will reach 70 km/hr

If x is 24.4 then y will be 70.

Step-by-step explanation:

Add 5x to both sides to isolate y. The equation should be 2y=18+5x

Divide all terms by 2 to get y=9+2.5x

If y is 70, the equation is 70=9+2.5x

Subtract 9 from both sides to get 61=2.5x

Divide both sides by 2.5 to get x=24.4