Answer:
Daughter age = 3 years
Step-by-step explanation:
Let x be the age of the women and y be the age of the daughter.
Given:
After five year the sum of the women and daughter age = 40
At present the sum of the women and daughter age
--------------(1)
So the sum of the present age is
The difference in their present age is 24 years.
Now we substitute x value in equation 1.
Therefore, the daughter age is 3 years.
4 and 7 and 8 and 9 and10
Based on the ratio of boys/girls We can infer that the only possibility for Ellen's math class would be answer B. 14/21
9°, complementary angles always add up to 90°