1. Andy, Brian and Charlie share $72 in the ratio 2:3:4
Work out how much Brian receives.

Відповідь:Brian-24$.

Покрокове пояснення:

Suppose that the coefficient of proportionality = x, then Andy-2x, Brian-3x, Charlie-4x.

2x+3x+4x=72

9x=72

x=8-the coefficient of proportionality.

1)8•3=24($)-Brian.