Two number are in ratio 9:4 if 7 added to each of the number , the ratio become 5:3 find the number and solutions
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9x+7\4x+7=5\3
3[9x+7]=5[4x+7]
27x+21=20x+35
7x=14
x=2
3[9x+7]=5[4x+7]
27x+21=20x+35
7x=14
x=2
Answered by
0
Answer:
the numbers are 18 and 14
Step-by-step explanation:
Let the number be 9x and 7x
(9x+7)/(4x+7)= 5/3
=> 3×(9x+7)= 5×(4x+7)
=>27x+21= 20x+35
=> 27x-20x= 35-21
=>7x=14
=> x= 2
therefore the numbers are 9x= 9×2=18 and 7x=7×2=14.
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