# math 156

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a pet shop has a total of 17 dogs and birds. Altogether there are 48 feet. How many dogs are ther and how many birds?

• math 156 -

2b+4d=48 assuming dogs have four feet, birds two.

b+d=17

b=17-d
2(17-d)+4d=48
34+2d=48
d=7
b=10

• math -

6.8

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