1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ahrayia [7]
3 years ago
14

There are 18 animals. Some cows and some ducks with a total of 60 legs. How many cows and how many ducks?

Mathematics
1 answer:
malfutka [58]3 years ago
5 0
X + Y = 18
X=chickens, Y=Cows
2x + 4y = 60
Let's try 8 and 10.
16 + 40=56, no, 32+20=52, no. 8&10 do not work.
Let's try 9 and 9.
18+36=54, no. 9&9 do not work.
Let's try 11 & 7.
22+28=50, no. 14+44=58, no.
Let's try 12 & 6.
24+24=48, no. 12+48=60 YES!
There are 12 cows and 6 chickens.
You might be interested in
SERIOUSLY HELPPPPPPPP
AlekseyPX

9514 1404 393

Answer:

  B.

  • as x increases, f(x) decreases;
  • as x decreases,f(x) decreases

Step-by-step explanation:

The function is of even degree with a negative leading coefficient. f(x) will tend toward negative infinity as x gets larger or smaller. That is ...

  • as x increases, f(x) decreases;
  • as x decreases,f(x) decreases

_____

<em>Even degree</em> means the end behaviors are the same for both large and small x. <em>Negative leading coefficient</em> means the function value decreases for larger x.

8 0
3 years ago
FInd the X- and the Y-intercept of the line.
Maurinko [17]
A. You divide 1 (infront of x) by 12 to get 12. You divide -6 by 12 to get -2 for the y intercept.
6 0
3 years ago
Read 2 more answers
What is 4 1/2 pint to quart?
Ivanshal [37]

There are two pints every quarter.

So let's convert pints to quarter

   \frac{4\frac{1}{2} }{2} =\frac{\frac{9}{2} }{2} = \frac{9}{4}

There 4 1/2 pint is to 9/4 quarter.

Hope that helps!

p.s. look at my diagram to help you remember

5 0
2 years ago
2 addition sentences
Gemiola [76]

Answer:

these are my two answers

5+8=13. | 8+5=13.

7 0
3 years ago
There are 20 blue marbles and 10 red marbles in a bag .if a marble is drawn at random once ,what is the probability that it will
andrew11 [14]

Answer:

2/3

Step-by-step explanation:

First, you figure out how many marbles are in total, which is the denominator. The total number of marbles is 30.

Then, you figure out how many marbles are blue, which is the numerator. There are 20 blue marbles.

Finally, you simplify the fraction. 20/30=2/3.

5 0
3 years ago
Read 2 more answers
Other questions:
  • Ivan runs 7 miles in 60 minutes. at the same rate how many miles would he run in 24 minutes
    10·1 answer
  • 1. = 6 × 573 = 6 × (_____ + 70 + _____) = (_____ × ____) +(6×70) +(____×_____) =_______+420+___ =________ I will give you 11 poi
    8·1 answer
  • I need the answer :(
    8·1 answer
  • Draw a model to subtract 2 2/5 -1 8/10
    14·1 answer
  • Find the value of x. Round to the nearest degree.
    14·1 answer
  • Mary had 5 nickels in her bank her dad gave her 4 more nickels how many nickels does Mary have now
    11·1 answer
  • Un mecánico tiene un conjunto de 20 llaves. La medida de la llave más grande es 3/4 pulgada, mientras que la llave mas pequeña e
    8·1 answer
  • I need help I just don't understand
    12·2 answers
  • Will give brainliest to best awnser
    14·1 answer
  • 6<br> 19<br> 97°<br> Х<br> Solve for x on the following triangle
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!