Thursday
July 24, 2014

Homework Help: MATH HELP!!!!!!!!

Posted by Eva on Friday, November 17, 2006 at 8:55pm.

orlando likes baseball. He's a good fielder, but he wants to improve his batting average. currently .200 (or 20%) for the first part of the season. he practiced a lot with a friend and managed to hit 10 out of 20 times that he was up to bat that season.
Suppose Orlando's batting average at the ened of the season is 30% How many hits did he get during the earlier part of the season?(when his average was 20%)



The total hits in the season was 10, the total at bats was 20

H is hits first part of season
AB is at bats first part of season.

H/AB=.2
or H=.2AB
But at the end,
(10 + H)/(20+AB) = .3

Put the H=.2AB for H in the second equation, and solve for AB. Then solve for H.

I assume that the 10 out of 20 occurred after he had batting practice with his friend. Let X be the number of "at bats" before that. Then
10 + 0.2 X/(20 + X) = 0.3,
the end-of-season batting average. Solve for X.
10 + 0.2 X = 6 + 0.3 X
4 = 0.1 X
X = 40

thanks! very helpful

thanks!

no of hits15 no of times at bat 60

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

maths - orlando likes baseball. He's a good fielder, but he wants to improve his...
Algebra - A baseball player's batting average is the number of hits the player ...
Pre-Algebra - PLEASE! - Ray's son, Martin, plays for the mnor league baseball ...
Statistics - In baseball, is therelinearcorrelation between batting average and ...
Physics - A baseball player uses a pitching machine to help him improve his ...
statistics - In baseball, is there a linear correlation between batting average ...
math - which of the following professonal baseball playershad the best batting ...
Math - Tim practiced batting at a batting cage. For 25 cdnts he got 10 pitches...
Literacy - This is a brief story on Jackie Robinson's life and I have to make a...
physics - A baseball player puts a baseball on a batting tee. The baseball bat ...

Search
Members