math
posted by tom bleyu .
The rentastall horse barn has stalls for 1000 horses. Forty percent of the stalls are for ponies. On Tuesday, there were 200 ponies and a bunch of quarter horses at the horse barn. The horse barn was 75 percent full.
hOW MANY QUARTER HORSES WERE IN THE STALLS? SHOW CACULATIONS AND BE ABLE TO EXPLAIN HOW YOU GOT THE ANSWER.

Total horses = 0.75 * 1000 = 750.
Quarter horses = 750  200 ponies =550.