Question

7 t-shirts and a hat costs £67 and 5 t-shirts and a hat costs £49 how much does a hat cost

Answer 1

Step-by-step explanation:

Let the cost of a t-shirt be £x and let the cost of a hat be £y .

Then we have 7x + y = £67           (i)

And 5x + y = £49                           (ii)

On subtracting (ii) from (i) we get (7x + y) - (5x + y) = £67 - £49

=> 2x = £18

=> x = £9

Hence 7x + y = £67

=> £7*9 + y = £67

=> £63 + y = £67

=> y = £4

Hence the cost of a t-shirt is £9 and the cost of a hat is £4.

Hope this helps you .

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