At a pond there were 24 ducks swimming. the ratio of duckling to adult ducks is 5 to 1. how many ducklings were swimming at the pond.

Twenty ducklings were swimming at the pond

Step-by-step explanation:

Let

x> the number of ducklings

y> the number of adult ducks

we know that

x+y=24 > equation A

\frac{x}{y}=\frac{5}{1}

so

x=5y

y=0.20x > equation B

Substitute equation B in equation A

x+0.20x=24

1.20x=24

x=20 ducklings

answer: the answer is one of

step-by-step explanation:   we are given to write a proper fraction where the whole is divided into an even number of equal parts less than ten, and an odd number of those parts exist.

an even number less than 10 may be one of 2, 4, 6 or 8. so, the whole may be one of these four evens.

now, an odd number of these parts must exist, so the numerator must be an odd number, one of 1, 3, 5 or 7. it cannot be 9 because then the fraction will become improper.

thus, our fraction may be one of the following

faster, im not sure why but i know it is faster