Question

During a recent telethon, people pledged $25 or $50. Twice as many people pledged $25 as $50. Altogether, $18,000 was pledged. How many people pledged $25?
bobpursley
N*25+ N/2 *50=18000
solve for N.
Stacy
360 people pledged $25-9,000
180 people pledged $50 - 9,000