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?

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1. N*25+ N/2 *50=18000
solve for N.

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bobpursley
2. 360 people pledged \$25-9,000
180 people pledged \$50 - 9,000

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2. 👎

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