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alina1380 [7]
2 years ago
5

Two siblings get bags of Jelly Beans and start eating them at different speeds. After a while Maya has 3 times as many Jelly Bea

ns as her brother Tommy. If Maya is given 20 more beans by a friend, she will have 7 times as many beans as Tommy. How many Jelly Beans does Tommy have?
Mathematics
1 answer:
ololo11 [35]2 years ago
5 0
3t + 20 = 7t
20 = 7t - 3t
20 = 4t
20/4 = t
5 = t.....Tommy has 5 jelly beans
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Subtract a from all equalities:

63-a=q_1\cdot n\\ \\45-a=q_2\cdot n\\ \\69-a=q_3\cdot n

Subtract them:

63-45=(q_1-q_2)n\Rightarrow 18=(q_1-q_2)n\\ \\69-63=(q_3-q_1)n\Rightarrow 6=(q_3-q_1)n\\ \\69-45=(q_3-q_2)n\Rightarrow 24=(q_3-q_2)n

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