Answers

2015-10-23T17:12:35+05:30
Let x be the number of months 
Let y be the amount 

For Mira, y = 760 - 40x  _____________(1)
For Paulina, y = 210 + 70x   __________(2)

Subtracting (1) from (2)
y = 210 + 70x
y = 760 - 40x 
(-)   (-)   (+)     
0 = 550 + 110x
or 110x = 550
or x = 550/110
or x = 5

Mira and Paulina will have same amount in 5 months.
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2015-10-26T22:00:57+05:30
Let months be x Amount be y By question. Y=760-40x AlsoY=210+70x On solving760-210=110x x=5
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