billybob11091 billybob11091

19-02-2019
Mathematics

contestada

There are 17 animals in the barn. Some are ducks and some are sheep. There are 48 legs in all. How many of each animal arr there?

Respuesta :

alfonsoantonio alfonsoantonio

19-02-2019

Answer:

x=10 , y=7

Step-by-step explanation:

x + y = 17

we know that ducks has 2 feet and sheep has 4 feet.

so, 2x + 4y = 48

x = 17 -y

2(17-y) + 4y = 48

34 - 2y + 4y = 48

2y = 48 -3 4

2y =1 4

y=7

x + 7 = 17

x = 17-7

x=10

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