Machine m, working alone at its constant rate, produces x widgets every 4 minutes. machine n, working alone at its constant rate, produces y widgets every 5 minutes. if machines m and n work simultaneously at their respective constant rates for 20 minutes, does machine m produce more widgets than machine n in that time?

Yes

Step-by-step explanation:

Given that Machine M, working alone at its constant rate, produces x widgets every 4 minutes. Machine N, working alone at its constant rate, produces y widgets every 5 minutes.

When both machines work for 20 minutes

Machine A would produce = widget and

Machine B would produce = widgets

So we can say that Machine A would produce more widgets than Machine N at that time.

Answer is Yes

14 ft 7 inches

step-by-step explanation:

since each model inch corresponds to 25 real inches, 7 model inches will correspond to

7×25" = 175"

at 12" per foot, that is 14 feet, 7 inches.