How many ways can you get a sum of 3 or 9 on a roll of two dice
1 answer:
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<u>Anna:</u>
1st month = 18 + = 18
inches
2nd month = 18 +
= 19
3rd month = 19 +
= 20
4th month = 20 +
= 21
5th month = 21 + = 21
<u>Grace:</u>
Because Anna is inches shorter than Grace, we can start the count from the third month:
1st month = 20
2nd month = 21
3rd month = 21
4th month = 21 +
= 22
5th month = 22 +
= 23