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yanalaym [24]
3 years ago
9

90 marbles were stored in two boxes, box A and box B. After 5 marbles were removed from box A to box B, both boxes had the same

number of of marble. How many marbles were in box A originally?
(Please help- I really don't understand)
Mathematics
2 answers:
KIM [24]3 years ago
6 0

Answer:

50 marbles in box a

Step-by-step explanation:

if one box has 50 and another 40, when you take away 5 from box a there will be 45 and 45 and in total there are still 90 marbles. Your welcome. Pls mark brainliest

arsen [322]3 years ago
4 0

Answer:

There were originally 50 marbles in box A.

Step-by-step explanation:

If you have 50 marbles in box A and put five of them into box B, they would both have 45 marbles.

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Answer:

3.5

Step-by-step explanation:

Given : the hydronium ion concentration is 3.4*10^{-4} in orange juice

To Find: what is the pH?

Solution :

Definition of pH : pH is the negative log of the molar hydrogen ion concentration

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Since we are given H+ =  3.4*10^{-4}

So, substituting this value in formula :

pH = - log [3.4*10^{-4}]

pH = - log [3.4*0.0001]

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Answer:

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