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podryga [215]
3 years ago
14

padma mixes 300ml of her favourite drink.she uses 15% orange juice and 5% pineapple juice.the rest is lemonade. how many ml of l

emonade does she use? p.s pls explain your answer
Mathematics
2 answers:
Juliette [100K]3 years ago
6 0
100% = 300ml
15% = 45ml
5% = 15ml
20% = 60ml
100% - 20%= 80%
80% = 240ml
So your answer is 240ml
mestny [16]3 years ago
5 0
Percentage of Lemonade = 100 - (15 + 5)
= 100 - 20 = 80%

Now, We have to calculate the 80% of total amount of the drink i.e., 300 ml

So, 300 * 80%
= 300 * 0.80   [ 80% = 0.80 ]
= 240

In short, Your Answer would be: 240 ml

Hope this helps!
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Substituting the value of x from equation (i) in equations (ii) and (iii), we have

(20-y-z)+2y+5z=67\\\\\Rightarrow y+4z=47\\\\\Rightarrow y=47-4z~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(iv)

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y+2z+5(20-y-z)=55\\\\\Rightarrow -4y-3z=-45\\\\\Rightarrow y=\dfrac{45-3z}{4}~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(v)

Comparing the values of y from equations (iv) and (v), we get

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