bhartin bhartin

07-08-2019
Mathematics

contestada

5. A farm has cows and ducks. Between them, these animals have 78 feet
and 27 heads. How many of each animal are there? Show how you know.

Respuesta :

ashley00864 ashley00864

07-08-2019

1 cow has 4 legs and 1 duck has 2 legs

c= the # of cows
d= the # of ducks

78 feet —> 4c+2d =78
27 feet —> c+d=27

4c+2d=78/:2
c+d=27/•(-1)

Answer Link

Otras preguntas

Which statement correctly describes what proteins, lipids, and glycogen have in common? a. They are all used as primary energy sources during exercise. b. They

What effects does acid rain have on the environment of Germany?

how do you factor out the coefficient of the variable in the problem 3n-24

aaron walks from his sisters house to his cousins house, a distanceof 4 miles, in 80 minutes.how far does he walk in 30 minutes

Solve for each variable in the equations that follow 3x+y=25

what is the square root of 64

Solve: 3(4x-2)is greater than or equal to 7x+19

It is 10 3/5 miles from Alston to Barton and 12 1/2 miles from Barton to Chester. The distance from Alston to Durbin, via Barton and Chester is 35 miles. How fa

what are two ways that cells use energy released from the breakdown of ATP

two things found in a plant cell that are not found in a animal cell