Answer: e) 6
Step-by-step explanation:
Let x be mother + children = 18
Father's age = 38
Average age of the family = 14
38 + 18x /( x + 1 )= 14
Opening the bracket
38 + 18x = 14x + 14
Collecting like terms
24 = 4x
x = 6
no of children in the family is 6.
Answer:
D.
The longer the interest rate, the more money it will generally cost someone.
The diagonals of an isosceles trapezoid are congruent.
The bases of a trapezoid are parallel.
72
Explanation:
8*9=72