5 tins of soup have a total weight of 1750 grams. 4 tins of soup and 3 packets of soup have a total weight of 1490 grams. Work out the total weight of 3 tins of soup and 2 packets of soup.
Let tins be represented by XLet packets be represented by Y
5X= 1750X=350
4X+3Y=14904(350)+3Y=14901400+3Y=14903Y=90Y=30
3X+2Y= (3x350) + (2x30)= 1050+ 60= 1110
JC
Related Maths GCSE answers
All answers ▸Simplify: 5x + 8y - 3x + 9y
A straight line goes through (0,1), (2,5) and (4,9). The equation of the straight line is y=2x+1. Is the point (7,12) on this straight line?
n is an integer greater than 1. Prove algebraically that n^2 – 2 – (n – 2)^2 is always an even number.
what is the Pythagoras theorem?