Answer:
We know that,
1week=7days.
So,
3weeks:3days = 3×7days:3days
= 21days:3days
=
3
21
=
1
7
= 7:1
That would be 1/5 in simplest form you can divide both numbers by 12 and when you do you get 1/5. Hope this helps!
It’s not a function as there are more than one value of y fir each value if x
11 / 3 = 55 / 15;
2 / 5 = 6 / 15;
So. 11 / 3 - 2 / 5 = 55 / 15 - 6 / 15 = 49 / 15 = 3.26 kg is the mass of biscuits left.