Bob can type 2 letters in 4 hours while bill can do it in six. How many hours will it take them, working together, to type six l
2 answers:
You might be interested in
Answer:
C) ±8/5
Step-by-step explanation:
Both the numerator and the denominator are positive squares (8 is the square root of 64, and 5 is the square root of 25). Finding the square root of both the numerator and the denominator will yield the simplified fraction ±8/5.
Remember: the square roots of a positive square are always both positive and negative. The square root of is 2 (
) and -2 (
)