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gogolik [260]
3 years ago
13

Definition for compatible numbers

Mathematics
1 answer:
jenyasd209 [6]3 years ago
8 0
When estimating, compatible numbers are numbers that are close in value to the actual numbers, and which make it easy to do mental arithmetic.
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Yanira is 3 years older than tim and twice as old as hannah. tim is 2 years older than hannah. how old are yanira, tim, and hann
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Y = T+3 (i)
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T = H+2  therefore H = T-2

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Now substitute that Y into (i)
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T-4=3
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Then from (i) Y=T+3 = 7+3 =10
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