Answer:
D. 15
Step-by-step explanation:
Let the missing length be represented as x.
Thus:
(24 - x)/12 = x/20 => angle bisector theorem
Cross multiply
20(24 - x) = x(12)
480 - 20x = 12x
480 - 20x + 20x = 12x + 20x
480 = 32x
480/32 = 32x/32
15 = x
Missing length = x = 15
Answer:
81.2222 or 81 with 2 left over
Step-by-step explanation:
731/9 = 81.2222
81.2222 rounded down = 81
9*81 = 729
731-729 = 2 left over
This is the third time I am answering the question.
Answer:
Step-by-step explanation:
Let x = the age of the youngest child
Let x + 1 = the age of the middle child
Let x + 2 = the age of the oldest child
x + x + 1 + x + 2 = 39
3x + 3 = 39
3x = 36
x = 12 years
Answer: For plato family
A fossil with 47% of its carbon-14 remaining is approximately __2998_ years old.
A fossil that is 7,000 years old will have approximately _17%__ of its carbon-14 remaining
Step-by-step explanation:
Just took the test
