find the compound ratio of 5 : 7 and 15 : 9
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Answer:
75:63
Step-by-step explanation:
given ratios=5:7and15:9
copound ratio of a:b and c:d=ac:bd
compound ratio of 5:7 and 15:9 = 5(15):7(9)
=75:63
the answer is 75:63.
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