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Mathematics, 10.12.2021 06:40 Haven263
Last year, the ratio of the ages of Mel and her friend is 3:4. Next year, the ratio will be 4:5. Form two simultaneous equations using the information above, and solve them by using the elimination method. Hence find their ages now.
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Last year, the ratio of the ages of Mel and her friend is 3:4. Next year, the ratio will be 4:5. For...
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