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64 - (3y + 8y + y) / 40 = 37
Simplify 3y + 8y + y
64 - 12y / 40 = 37
Add 12y / 40 to both sides and subtract 37
27 = 12y / 40
Multiply both sides by 40
1080 = 12y
Divide both sides by 12
90 = y
Answer:
The mother is 30 and the daughter is 6
Step-by-step explanation:
When solving for this, you can derive the equations
x=5y and x+6= 3(y+6)
x= mother and y= Daughter
Solve the equations by substituting the first equation into the places of x in the second equation to get the value of x. Next, pug in the value of x and solve for y.
x + 10 > 2 (x = anything over 0)
The answer is 252 pi units.
Explanation:
The surface area of a right cylinder is
So, given height is = 15 units
Given radius is = 6 units.
So, putting these values in the formula, we get:
=
= units
Hence, the answer is option D.