Question

Laura is bowling 5 games. Her first 4 scores were 118, 133, 150, and 83. To end up with an average score of at least 125.6, what is the lowest score Laura will need in the 5th game?

a) 130
b) 125
c) 140
d) 120

Answer 1

To find the lowest score Laura will need in the 5th game to end up with an average score of at least 125.6, you need to calculate the sum of her first 4 scores and subtract it from the target average multiplied by 5. Therefore, the lowest score Laura will need in the 5th game is 144.

Step-by-step explanation:

To find the lowest score Laura will need in the 5th game, we need to calculate the sum of her first 4 scores and subtract it from the target average multiplied by 5 (the total number of games).

The sum of her first 4 scores is 118 + 133 + 150 + 83 = 484.

Next, we need to calculate the lowest score that will give her an average of at least 125.6 for 5 games.

(Target Average * Total Number of Games) - Sum of the First 4 Scores = Lowest Score for the 5th Game

(125.6 * 5) - 484 = 628 - 484 = 144.

Therefore, the lowest score Laura will need in the 5th game is 144.