If you can solve this mixture problem, I will award you with ten bucks on steam.
>>19407
Insufficient data it's an impossible question.
>>19411
It is solvable.
>>19407
That requires us to know the weight of the apples that he's using.
>>19415
3lbs is not correct.
>>19417
20 * .40 = 8
20 * .25 = 5
8 - 5 = 3
?
>>19421
>adding apples keeps it the same weight
ok
We don't know the initial weight of the salad, that's why it's impossible.
>>19428
Yea I'm dumb
I think we can assume the initial weight that alex made was 20lbs, but he needs to add apples to get to 40%.
>>19407
100%= 20 pounds
40%= 8 pounds in apples
Let x be the amount of apples (in pounds) that logan has to add.
then Logan started with a salad that has a (8-x)/(20-x)=25% ratio of apples.
solving for x the previous equation we find that Logan added x=4 pounds of apples
>>19483
it clearly says that he makes 20 lbs of salad for his mother
>>19460 is right
8 : 20 = (5 + x) : (20 + x)
160 + 8x = 100 + 20x
60 = 12x
x = 5 lbs
Damn!!!
A bunch of dumb fucking retards in this motherfucker!!!!
>>19407
3lb
all you fags saying its impossible are dumb fucks
>>19777
it's 4, you dumb fuck.
if it was 3, then originally Logan would have a ratio of 5/17 lbs of apple in his salad and 5/17 != 25%
Assume that the question is poorly worded.
He has a salad that is 25% apples and 20lbs
He needs 40% apples
5% apples would be 4lbs
To get from 25% to 40% he needs another 15%
Which is 3 x 4lbs = 12lbs
Though the proportions are now wrong because he needs to remove 15% of something else, I think this is the answer they're looking for
>>19789
Disregard, misread 20lbs for entire salad.
25% is 5lbs
15% is 3lbs
he needs to add 3lbs
>fruit salad
>40% apples
yo' momma sounds like a messed up bitch.
>>19792
you don't know how percentages work
>>19407
math fag here, not enough information is given
unless by solve you mean come up with an equation with two unknowens to solve in which case this should suffice
y = apples to add in lb to make 40% apples
x = inital weight(lb) of the fruit salad at 25% apples
y = (x*0.25)*(40-25) = 3.45x
>>19820
That solution means that he started with exactly 16 lbs. of salad (with 4 lbs. of apples) which is not stated in the problem and not implied in the question (for example by asking about the starting weight and saying that he only added the apples and made exactly 20lbs of salad).
If he started with 12lbs of his own salad (with 3 lbs of apples) he needs to add 5 lbs of apples (and 3 lbs of other fruits).
If he started with 4lbs of his own salad (with 1 lbs of apples) he needs to add 7 lbs of apples (and 9 lbs of other fruits).
and so on.
Uhahaha
>>20386
Yeah you sure trolled us hard, so hard the question was solved within the first post.
>>20375
You are right, the solution is 4 <= x <= 8
>>19795
Just imagine a middle aged woman flipping her shit because her 20 pound fruit salad is 39% apples.
