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2 years ago

6

I don't understand this question on Systems of Equations unit. (Algebra 1) It says "A farmhouse shelters 11 animals. Some are go

ats and some are ducks. Altogether there are 34 legs. How many of each animal are there?"

1 answer:

Helen [10]2 years ago

8 0

The answer is 6 goats and 5 ducks

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goldenfox [79]

Try breaking these into sections.

Twice: 2 times

The sum of: add

A number: choose a variable, like x

---Thus "the sum of a number and 4" becomes "add x and 4" which, mathematically, is "x+4"

-----Continuing to put it all together, "Twice the sum of a number and four" becomes "2 times (x+4)" which, mathematically, is "2(x+4)"

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23 less than: subtract 23. This one tends to trick people; "23 less than" will become "__ - 23", NOT "23 - __"

three times the number: 3 times x

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2 years ago

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The answer is

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Hitman42 [59]

Answer:

a^2+b^2=c^2

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square root of 72

=8.49(3sf)

c^2-b^2=a^2

=3

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