Shelley compared the number of oak trees to the number of maple trees. she counted 9 maple trees to every 5 oak trees in the beginning of the year. at the end of the year, the new ratio of the number of maple tree to the number of oak trees is 3:11. at the end of the year, there were 132 oak trees. how many more maple tree were then in the beginning of the year than the end of the year? explain

Question

Rudy Shaw

Mathematics

6 June, 06:28

Shelley compared the number of oak trees to the number of maple trees. she counted 9 maple trees to every 5 oak trees in the beginning of the year. at the end of the year, the new ratio of the number of maple tree to the number of oak trees is 3:11. at the end of the year, there were 132 oak trees. how many more maple tree were then in the beginning of the year than the end of the year? explain

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Yusuf Nelson · Answer 1

So at the end of the year maple:oak=3:11 and there were 132 oak so 132=11 units 132/11=12 so there were 3 times 12 maple trees at the end or 36 so 36:132

assuming the units stay the same (1 unit=12) in the biginning of the year there were 108 maple trees

108-36 = 72

there were 72 more