After five games of bowling, Ralph’s average score was 91. After six games, his average score was 89. What was his score in the
2 answers:
Answer:
79
Step-by-step explanation:
We require his total score after 5 games
average = , hence
= 91 ( multiply both sides by 5 )
total = 5 × 91 = 455
let his score in the sixth game be x, then
= 89 ( multiply both sides by 6 )
455 + x = 534 ( subtract 455 from both sides )
x = 534 - 455 = 79
his score in the sixth game was 79
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