Answer:
A
Step-by-step explanation:
Sub
b=3a so put 3a for every b
c=5a so put 5a for every c
a+3a+5a=180
9a=180
divide 9 both sides
a=20
b=3a
b=3(20)
b=60
Binary number systems can be used in computer technology
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Answer:
So, because 18 is between 16 and 25, we know its square root must be between their square roots, that is, between 4 and 5.
