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Dylan buys 5 teas and 5 coffees for £3.75. Raphi buys 2 teas and 3 coffees for £1.75. Work out the cost of one tea and one coffee.​

1 Answer

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Answer: x= Tea, y = Coffee

x=0.5 and y=0.25.

Explanation:

To solve this system of linear equations:

Step 1: Rearrange equation (1) to solve for y in terms of x:

5x+5y=3.75

5y=3.75-5x

y=(3.75-5x)/5

Step 2: Substitute the expression for y from step 1 into equation (2):

2x+3y=1.75

2x+3[(3.75-5x)/5]=1.75

Step 3: Simplify and solve for x:

2x+(11.25-15x)/5=1.75

10x+11.25-15x=8.75

-5x=-2.5

x=0.5

Step 4: Substitute the value of x from step 3 into equation (1) and solve for y:

5x+5y=3.75

5(0.5)+5y=3.75

2.5+5y=3.75

5y=1.25

y=0.25

Therefore, the solution to the system of equations is x=0.5 and y=0.25.

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