Here is your answer. In the first bracket it's your X1 and Y1 and second bracket it's your X2 and Y2
469 871
------ = ---------
7 x
469x = 7(871)
469x = 6097
x = 6097/469
x = 13 hours
hope this helps :)
Answer:
should be 82%
Step-by-step explanation:
Hope this helps!
Answer:
40 students
Step-by-step explanation:
We need a system of equations to find x or the students in advance:
2x + 4y = 800
x + y = 220
We can use substitution and isolate y in the second equation, which gives us y = 220 - x.
When we plug this into the first equation, we get 2x + 4(220 - x) = 800 and solving for x gives us x = 40.
Answer:
Step-by-step explanation:
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