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2 years ago

Please help with this and explain

Mathematics

1 answer:

bixtya [17]2 years ago

8 0

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.

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