Answer:
47 years old.
Step-by-step explanation:
Let c represent each children, 'f' represent the father and 'm' represent the mother. We are given that:
Replace the first two equations into the last to solve for 'f':
The father is 47 years old.
Answer:
option D is true
Step-by-step explanation:
Given expression is
3x^2 -11(2y+1) + 4
A) 11 is not a constant , because 11 is multiplied with 2y+1
B) 3 in the first term is not a exponent. 3 is the coefficient of x^2
C) 4 in the third term is not a factor, 4 is a constant
D) 2 in the second term is the coefficient of y. so 2 is a coefficient. That is true
Answer:
Step-by-step explanation:
Find a common denominator or greatest common factor. 63 and 27 are both multiples of 9. When you divide each by 9 you get 7:3. 14 and 6 are both multiples of 2. When you divide each by 2 you get 7:3 again. So these ratios are equivalent.
Start with any set of numbers. Multiply them each by the same factor and the new set will be an equivalent ratio.
Answer:
The 3 possible values of x are;
6, 4 and 2
Step-by-step explanation:
If the triangle is isosceles, then two of the sides must be equal
So we equate the sides, 2 at a time to get the different values of x
3x + 4 = 2x + 10
3x-2x = 10-4
x = 6
3x + 4 = x + 12
3x-x = 12-4
2x = 8
x = 8/2 = 4
2x + 10 = x + 12
2x - x = 12-10
x = 2