julissa779 julissa779
  • 26-01-2022
  • Mathematics
contestada

Please help with this and explain

Please help with this and explain class=

Respuesta :

chrisbroshera1 chrisbroshera1
  • 27-01-2022

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 Link

Otras preguntas

After Pennsylvania experienced its oil boom in 1859, three other states discovered vast oil reserves. Name two of these states.
Does she pluck flower? (change into passive voice)
How do you make profit when you open a business
a charge of 90 C passes through a wire in 1 hour 15 minutes . what is the current in the wire
what will be the effect on the loudness of sound if the amptitude is doubled and halved?
Calculate the discriminant. x2 – x – 2 = 0
If √5 - x = 4,then x=i need help on here how to solve it
2,7,26,101,400 what is the next number
2,7,26,101,400 what is the next number
Calculate the discriminant. x2 – x – 2 = 0