In surveying families with pets, 5 out of 7 families owned a dog. If 35 families had dogs, how many families were surveyed?
1 answer:
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Answer:
Step-by-step explanation:
AD = 4
AC = 11
DC = 11 - 4 = 7
First, find BD using the right triangle altitude theorem:
Plug in the values
Use pythagorean theorem to find x:
x² = AD² + BD²
Plug in the values
Take the square root of both sides