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vshiroky
 one year ago
Last week David Wright had a batting average of .350. After the next night's game, Wright had 3 hits in 5 at bats, his average increased to .352. Determine the number of at bats and his Wright has altogether.
vshiroky
 one year ago
Last week David Wright had a batting average of .350. After the next night's game, Wright had 3 hits in 5 at bats, his average increased to .352. Determine the number of at bats and his Wright has altogether.

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0.350 is David's cumulative average.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0If you were to add the 3/5 result to compute the new average, the expression would be

vshiroky
 one year ago
Best ResponseYou've already chosen the best response.0I'm not sure what to do..

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Let x be the number of hits before the game, and y be the number of bats before the game.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Then, you have two equations.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[\frac{ x }{ y } = .350\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[\frac{ x+3 }{ y+5 } = .352\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Batting average = #hits/#bats

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Take the two equations above and solve for x, y.

vshiroky
 one year ago
Best ResponseYou've already chosen the best response.0Part 2: At different times in the season, when David Wright had 3 hits for 5 times at bat, his batting average jumped from .350 to .351, from .350 to .355. Explain why the increase is not the same amount each time.

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.1vshiroky  Let's solve the first question okay? (x+3) / (y+5) = .352 we can multiply that x + 3 = .352y + 1.76 and x = .350 y

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.1We can rearrange those 2 equations A) x .352y = 1.24 B) x 350y =0 Can you solve that now?

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.1Hint multiply equation B by 1

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.1A) x .352y = 1.24 Okay, I'LL multiply equation B by 1 B) x +.350y = 0 Now, add both equations .002y = 1.24 y = 620

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.1SO, when the batting average was .350 it consisted of 217 hits for 620 at bats The batting average is computed as: hits / at bats 217 / 620 = .350

vshiroky
 one year ago
Best ResponseYou've already chosen the best response.0Do I add the 3 to 217? For the total bats to be 220

vshiroky
 one year ago
Best ResponseYou've already chosen the best response.0It wants to know at bat and hits all together I think

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.1That would be TOTAL HITS = 220 Then add 5 to the at bats making that equal 625 220 / 625 = 0.352

vshiroky
 one year ago
Best ResponseYou've already chosen the best response.0So 845 would be my final answer right? To know at bat and hits together?

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.1Now you know the hits and at bats for the .350 average AND the hits and at bats for the .352 average I think that answers the first question WAY up at the top of the page. NO your answer is not 845 please look at the answers again

vshiroky
 one year ago
Best ResponseYou've already chosen the best response.0I thought to get the # of times he bat and hit would be added but maybe 405 cause I'd have to minus the 2

vshiroky
 one year ago
Best ResponseYou've already chosen the best response.0Am I still way off @wolf1728

vshiroky
 one year ago
Best ResponseYou've already chosen the best response.0My phone doesn't load to fast. I had to switch off the laptop sorry

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.1Basically, you have to understand how the batting avaerage works. if you have 4 hits for 10 at bats what is your batting avaerage?

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.1CORRECT or .400 as it is usually reported Now, let's say at your NEXT at bat you do NOT get a hit  can you figure out the batting average then? Basically what is the "hits" what is the "at bats" and what is the average?

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.1okay the hits = 4 the at bats = 11 and the avaerage = 4/11 = 0.3636363636 OR .364 as it is usually reported

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.1So now do you see how to report the hits and the at bats in the original problem?

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.1Okay, yes Actually, in the first, part it originally asked for the hits and at bats for the .350 average 217 hits 620 at bats

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.1Do you have a little bit better idea now?

vshiroky
 one year ago
Best ResponseYou've already chosen the best response.0Yes I think so. Thank you.

wolf1728
 one year ago
Best ResponseYou've already chosen the best response.1Okay  glad to have helped out :)

vshiroky
 one year ago
Best ResponseYou've already chosen the best response.0I can't medal from my phone but I will from the computer tomorrow
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