what number must be subtracted from each term of the ratio 19 : 21 to make 7 : 8
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what number must be subtracted from each term of the ratio 19 : 21 to make 7 : 8
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Answer:
-3
Step-by-step explanation:
Verified answer
Answer:
12 should be subtracted from each term in the ratio 19:21 to make 7:8
Step-by-step explanation:
ATQ
(19-x)/(20-x)=7/8
8(19-x)=7(20-x)
152-8x = 140-7x
-8x+7x=140-152
-x = -12
x=12