SOLUTION: Greg bats in 7 cricket matches. In the 8th match he makes 9 runs and his average decreased by one. Let x be the average of seven matches, make an equation and find the value of x.
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Question 986185: Greg bats in 7 cricket matches. In the 8th match he makes 9 runs and his average decreased by one. Let x be the average of seven matches, make an equation and find the value of x.
Thanks! Answer by solver91311(24713) (Show Source):
If the average of 7 matches is , then the total runs scored in the 7 matches must be . Then the total runs scored in 8 matches has to be , and the average for 8 matches is . This average is one less than the 7 match average, so:
Solve for
John
My calculator said it, I believe it, that settles it
