The Student Room Group

Maths

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(edited 1 year ago)
Hi,
You started off well. The first equation is x+y= 20. Emma received 30c for every shot she hit, so there is a 10c profit. If it’s a miss, then there’s a loss of 20c. The total loss is 70c. So, you can form a new equation:
‘x- misses y- hits’ -20x + 10y = -70.
Then you can solve the two equations.
Hope that helps

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