A leak in a pool causes the height of the water to decrease by 0. 25 foot over 2 hours. After the leak is fixed, the height of t
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Let 
represent Mandy's age and 
represent Sandy's.
From the first statement we have:
From the second statement we have:
So we need to solve this system of equations:
Express from first equation equation:
Replace found value in second equation and solve the resulting equation:
Replace found value in first equation and solve the resulting equation:
So, Mandy is 16 years old and Sandy is 40 years old. The difference between their ages is 40 - 16 = 24 years.
From the first statement we have:
From the second statement we have:
So we need to solve this system of equations:
Express
Replace found value in second equation and solve the resulting equation:
Replace found value in first equation and solve the resulting equation:
So, Mandy is 16 years old and Sandy is 40 years old. The difference between their ages is 40 - 16 = 24 years.