please answer both........... it's urgent
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please answer both........... it's urgent
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Answer:
7) 18
8) 45
Step-by-step explanation:
7)
9:x:36
=9:x::x:36
Product of means=product of extremes
so, x²=36×9
=> x²=324
=> x = √324
=> x = 18
answer= 9:18:36
8)
5:9::25:x
Product of means=product of extremes
so, 5×x=9×25
=> 5x = 225
=> x = 225/5
=> x = 45
answer = 5:9::25:45
Step-by-step explanation:
7.Given that 9:x:36
If they are in the continued proportion then
9:x::x:36
Product of means=x×x=x²
Product of extremes=9×36=324
=>Product of extremes=Product of means
=>x²=324
=>x²=18²
=>x=18
8.Given that
5:9::25:x
Product of means=9×25=225
Product of extremes=5×x=5x
=>Product of extremes=Product of means
=>5x=225
=>x=225/5
=>x=45