WORKSHEET: ALGEBRA 3 - SOLUTION EXERCISE 5
|5) A kilogram of cherries costs twice as much a kilogramme of apples.
If I have paid €15 for three kilos of cherries and four kilos of apples.
How much is a kilogramme of apples? How much is a kilogramme of cherries?
x - price of one kilo of apples
2x - price of one kilo of cherries
3(2x) + 4x = 15
6x + 4x = 15
10x = 15
x = 15:10
x = 1.5
One kilo of apples costs 1.5€
One kilo of cherries costs 3€