what number should be added to each of the number 8,15,18,and 30, such resulting are in proportion
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Answer:
x=6
Step-by-step explanation:
Let x should be added to each of the number 8,15,18,and 30, such resulting are in proportion
so (8+x) / (15+x) =(18+x)/30+x)
Or (8+x)((30+x) =(15+x)((18+x)
240+8x+30x+x²=270+15x+18x+x²
38x-33x=270-240
5x=30
x=6
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