what number must be added to each of the number 18,28,30 and 46 so that they are in proportion ?
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Answer:
1 should be added to each of the b
number so that they are in proportion.
Step-by-step explanation:
(18+x) * (46+x) / (28+x) * (30+x)
828 + 18x + 46x + xsq = 840 + 30x + 28x + xsq
828 + 64x = 840 + 58x
840 - 828 = 64x - 58x
12x = 12
x= 1
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