Power various arduinos and sensors with one galileo

Hello, i have a project with about 150 lm35 (temperature sensors), 10 arduino mega and 1 intel galileo, i put a power source in the galileo and connected the others arduino by the 5v and gnd pins, is this ok? The 5v pin will sustain 10 arduino and 150 sensors?
Another idea is to use a USB hub (with a 5v charger) to power the arduinos mega...
What you think about it?