Answer:
or 
Step-by-step explanation:
Given


Required
Determine the solution
We'll solve using elimination method.
Subtract the first equation from the second:







Make x the subject:



Substitute
for x in the first equation



Make y the subject




Hence, the solution is:
or 
Answer:
5
Step-by-step explanation:
5x3=15
15+6=21
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Answer:
The answer is "3.03"
Step-by-step explanation:
please find the complete question in the attached file.
In 1970, the hourly wage was determined using the formula:

So, the hourly wage in 1970:

Answer:
C. 60 ft
Step-by-step explanation:
5 ft woman / 2 ft shadow
? ft antenna / 24 ft shadow
proportion time!
25*5 = 120
120/2 = 60
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