kxvy kxvy
  • 02-06-2017
  • Mathematics
contestada

I need helppp on this , I don't understand

I need helppp on this I dont understand class=

Respuesta :

mreijepatmat
mreijepatmat mreijepatmat
  • 02-06-2017
Let x be the number of doors used in the one-story houses
And let y,be the number of doors used in the two-story houses

1) 3x +12y =117
2) 4x + 12y =124
Solve by substitution and you will find x = 7 and y =8 or
7 homes wit one story and 8 homes with 2 story
Answer Link
Аноним Аноним
  • 02-06-2017
Ok the answer is 21 Xd
Answer Link

Otras preguntas

29,316 divided by 514 PLEASE HELP
Harriet lives on the ground level of her apartment building. The level she lives on is repersented as by?
Identify each part of this chemical equation, which describes the burning of methane and oxygen. A (the entire green box): B (the blue box): C (the arrow): D (t
What is the surface area of a regular square pyramid with a slant height of 12 cm and a lateral edge of 13 cm?
If g=-4.1, then -3g^2/(-3g)^2=
which type of exercise contributes most to building strong bones
What is the relationship among the numbers and symbols in the expression (6 – 4) • 2? Choose all answers that are correct. A. The difference betwee
An object whose mass is 300 lb experiences changes in its kinetic and potential energies owing to the action of a resultant force r. the work done on the object
Compute (a) the saturation magnetization and (b) the saturation flux density for cobalt, which has a net magnetic moment per atom of 1.72 bohr magnetons and a d
evaluate 2.5 -1.3 to three decimal