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
kotykmax [81]
2 years ago
13

There are 22 animals in the barn. Some are ducks and some are oxen. There are 72 legs in all.

Mathematics
1 answer:
xeze [42]2 years ago
7 0

Answer:

  • 14 oxen
  • 8 ducks

Step-by-step explanation:

Let x represent the number of oxen. Then the number of ducks is 22-x and the number of legs is ...

  4x +2(22 -x) = 72

  2x +44 = 72 . . . . . . . simplify

  x +22 = 36 . . . . . . divide by 2

  x = 14 . . . . . . . . . subtract 22; the number of oxen

  22-x = 8 . . . . . the number of ducks

There are 8 ducks and 14 oxen in the barn.

You might be interested in
I'm stuck on this question:<br><br> What's 100 divided by 2?
koban [17]

Answer:

50

Step-by-step explanation:

100 into 2 parts is 50

5 0
3 years ago
What is 64x64? and I know if you use a calculator =)
Savatey [412]

Answer:

4096

Step-by-step explanation:

7 0
3 years ago
Explain how to find the deviation of an entry in a data set
Ilia_Sergeevich [38]
The answer is: Find the mean of the differences with the other numbers in the set<span>. Add the squared differences and then divide the total by the number of items in </span>data<span> in your </span>set; t<span>ake the square root of this mean of differences to </span>find<span> the standard </span>deviation.
3 0
3 years ago
Please help i don't understand!
vaieri [72.5K]

Answer: 9. x=-3/2     10. x=2

                   x= 5/2           x=5/3

Step-by-step explanation:

9. Factor the equation:

How: put 4x^2 in the bottom left box and -15 in the upper right box.

then multiply 4x^2 x -15 = -60x^2 and put your answer in the top center box of the diamond.

Put the -4x from the equation in the bottom box. Then list out factors that multiply to the top box (-60x^2) and add to the bottom box (-4x) The two factors are -10 and 6

-10 x 6 = -60

-10 + 6 = -4

Put -12x and -5x in the remaining white boxes and find what numbers multiply to each.

I attached a picture. The colored dots correspond with each other.

Eg: Orange dot x orange dot = number in white square

Now you get the two factors (2x+3)(2x-5)

Set both of these equal to 0 and solve

0=2x+3     0=2x-5

x= -3/2       x= 5/2

Do the same for the other problem

7 0
2 years ago
What is the value of X?
NISA [10]

Answer:

I think the answer for this question is 2.24cm

4 0
3 years ago
Other questions:
  • 2/11 , 8/15, 7/13, 5/12<br> Which fraction does not belong with the other three?
    7·1 answer
  • Which decimal is less than 0.8?
    5·1 answer
  • PLS PLS PLS PLSSSSS HELPPPP
    6·2 answers
  • What is the area of the following circle​
    12·1 answer
  • i wasn’t here for my lesson. and my teacher is refusing to help me. Can someone help? like not a troll and actually help?
    6·1 answer
  • Mr. Mcdonald plants carrots in 5 rows of 6 six each, and he plants radishes in 8 rows of 12 each. How many vegetables did Mr. Mc
    9·1 answer
  • (-16) - 6 + (-5) (Can you guys explain how you got the answer?)
    15·1 answer
  • There are 90 flowers in the bunch. 60% of the flowers are yellow. How many flowers are yellow?
    10·1 answer
  • Naomi says that the graph represnts a proportional relationship because it is a straight line. Is Naomi reasoning correct explai
    12·1 answer
  • Which expression is equivalent to 3^0x3^-3?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!