Answer :
The cost of 1 kilo of cheese is : 11.6 soles.
Using the parameters given ;
- Cost of 3/4 of kilo = 8.70
The cost of 1 kilo can be calculated thus ;
3/4 = 0.75 kilo
Now we can find the cost of a kilo using the expression;
0.75 = 8.70
1 = x
take the cross product;
0.75x = 8.70
divide both sides by 0.75
0.75x / 0.75 = 8.70 / 0.75
x = 11.6 soles
Hence, the cost of 1 kilo of cheese is : 11.6 soles.