2.
Write down the ratio of teachers 31 to learners 1488 in its simplest form.
(2)
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31/1488 --> 1/48

Step-by-step explanation:

1. let 31/1488=x^-1

2. 31*x^-1=1488

3. 31*48=1488

f(x) has value 150 at x= 0

and 0 at x= 3

so d(f(x))/dt = slope = -150/3 = -50

the ratio of balloons to tables is 5: 2 and the constant variation is 5.

the equation is y=5x