A lifeguard fills a pool with water at a constant rate. After 1/2 hour, 1/3 of the pool is filled.
2 answers:
Answer:
D
Step-by-step explanation:
1/2 hour -> 1/3 pool
multiply this by 2
1 hour -> 2/3 pool
so D 2/3 pool
1/2 hour...................1/3
1 hour (1/2 x 2).......1/3x2
so = 2/3 of the pool is filled per hour
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