Mathematics: Alaboratory technician needs to make a 63-liter batch of a 20% acid solution how can the laboratory technician combine a batch of an acid solution that is pure acid with another that is 10% to get the desired concentration?

Alaboratory technician needs to make a 63-liter batch

Ответ:

KalistaBab

03.01.2022

Mathematics

(63-x)= amount of 10% solution wanted

0.10(63-x) + x =0.20(63) =

6.3-0.1x+x=12.6

0.9x=6.3

X=7

63-7 = 56 liters

Check:

0.10(56) +7 = 0.2(63)

12.6 = 12.6

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Ответ:

daniel7363

06.02.2021

Mathematics

Displacement is the distance from the final placement of the object from the initial point. So, since the swimmer started and ended in the same spot, it is zero.

Therefore your correct answer is:
A: 100m swimming 0 displacement

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Alaboratory technician needs to make a 63-liter batch of a 20% acid solution how can the laboratory technician combine a batch of an acid solution that is pure acid with another that is 10% to get the desired concentration?

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