Answer:
The father is 59
Step-by-step explanation:
lets say each of the kids are twelve
30*5=150-36=114=59+55
30*5+ 150 the age of everyone in the family added together
12*3= 36 the age of all the kids
150-36=114 the age of the adults added together
we know the mother is 4 years younger than the father so to state off you can take 114 and divide it by two to get what half of it is then take take numbers that are four apart to find the ages that add up to 114.
= square root (48x^8) / square root (3x^4)
= 4x^4/x^2
= 4x^2
answer is C. 4x^2
For this case we propose a system of equations:
a: Let the variable representing the cost of hardcover books
b: Let the variable representing the cost of paperback books
According to the statement data we have:
Substituting the second equation into the first we have:
Thus, the cost of hardcover books is $12
ANswer:
The cost of hardcover books is $12
