Question

3 cups of tea and 4 cups of coffee costs £3.45 in total.

4 cups of tea and 1 cup of coffee costs £2.65 in total.
How much would it costs to buy one cup of each in total?​

Answer 1

I agree with the person above me

Answer 2

A) 3T + 4C = 3.45

B) 4T + 1C = 2.65 We'll multiply this by -4

B) -16T -4C = -10.60 then we'll add A)

A) 3T + 4C = 3.45

-13T = -7.15

Tea is .55

and coffee is

A) 3 * .55 + 4C = 3.45

4C = 3.45 -(3 * .55)

4C = 1.80

coffee is .45

Explanation: