Ask question

Ask question

All categories

3 years ago

7

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.

2 answers:

CaHeK987 [17]3 years ago

7 0

Answer:

the answer is 20

Step-by-step explanation:

Setler [38]3 years ago

5 0

Answer:

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

You might be interested in

Write N as a discrete exponential function of t of the form N(t)=A(1+r)t. (HINT: You will need to find (1+r), where r is the rat

Whitepunk [10]

Answer:

$N(t)=84(1+0.0405)^t$ .

Step-by-step explanation:

We have been given that $N(11)=130$ and $N(0)=84$ . We are asked to write N as a discrete exponential function of t of the form $N(t)=A(1+r)^t$ .

Using our given information, we can set an equation as:

$N(0)=A(1+r)^0$

$84=A*1$

$84=A$

Using our given information, we will get:

$N(11)=A(1+r)^{11}$

Substitute the given values:

$130=84(1+r)^{11}$

$\frac{130}{84}=\frac{84(1+r)^{11}}{84}$

$1.5476190476190476=(1+r)^{11}$

Switch sides:

$(1+r)^{11}=1.5476190476190476$

Take 11th root of both sides:

$\sqrt[11]{(1+r)^{11}}=\sqrt[11]{1.5476190476190476}$

$1+r=1.04050024747304$

$r=1.04050024747304-1$

$r=0.04050024747304$

$r\approx 0.0405$

Therefore, our required function would be $N(t)=84(1+0.0405)^t$ .

5 0

3 years ago

It is a six-digit whole number.

pogonyaev

Answer:

212121.

Step-by-step explanation:

It is odd number so it ends in 1.

There are 3 2's and 3 1's which alternate.

Diivisible by 3 and 9

It is 212121.

8 0

2 years ago

.The sum of the angles of a polygon is 900⁰ .How many sides does it have

DanielleElmas [232]

Answer:

heptagon

Step-by-step explanation:

5 0

3 years ago

a science quiz has eight multiple choice questions with five choices for each. Find the total number of ways to answer the quest

almond37 [142]

Answer:

390625

Step-by-step explanation:

The questions are all independent -- the answer on one question does not limit the number of possible answers on another question.

The quiz has 5 choices for each question, so there are

$5\times5\times5\times5\times5\times5\times5\times5$ ways to answer the quiz questions.

Notice that this could be written $5^8$ . You could say that the number of ways to answer the questions is

$number \, of \, choices^{number \, of \, questions}$

Use a calculator to find $5^8$

8 0

3 years ago

Solve 3(x - 2) < 18.

Musya8 [376]

This answer is 290 because when you skip the math you would find the answer

5 0

3 years ago