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katovenus [111]
3 years ago
14

Ross and Annie do chores at their home acreage. Ross mows the acreage lawn every 12 days, and Annie bathes the dog every 21 days

. If Ross and Annie do their chores today, how many days will pass before they both do their chores again on the same day?
Mathematics
1 answer:
velikii [3]3 years ago
7 0
84 days will pay before they both do their chores again on the same day.
<span> <span> </span><span><span> Ross mows the lawn <span>      Annie bathes the dog </span>
</span> <span> 12 x 1 = 12                          21 x 1 =  21
</span> <span> 12 x 2 = 24                          21 x 2 =  42
</span> <span> 12 x 3 = 36                          21 x 3 =  63
</span> <span> 12 x 4 = 48                          21 x 4 =  84
</span> <span> 12 x 5 = 60                          21 x 5 = 105
</span> <span> 12 x 6 = 72                          21 x 6 = 126
</span> <span> 12 x 7 = 84                          21 x 7 = 147
</span> <span> 12 x 8 = 96                          21 x 8 = 168
</span> <span> 12 x 9  = 108                       21 x 9 = 189
</span> <span> 12 x 10 = 120                      21 x 10 = 210 </span></span></span>
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