On a school trip, the ratio of the number of teachers to the number of students was 1:7 The total number of teachers and students was 160.
Work out the number of teachers on this school trip.​

goog may have it for you

3, 12, 48, 384, 1536, 6144, 24576, 98304

step-by-step explanation:

just keep timing it by 4.

tube or goog would be a great resource to with that question

mrbilldoesmath!

answer: a parabola

steps:

(x-1)(x+4)   = x(x+4) - 1(x+4) = (x^2 + 4x) - (x+4)

                = x^2 +4x -x -4   = x^2 +3x -4

which is a parabola

mrb