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Luba_88 [7]
3 years ago
13

How many quarts of a 50% solution of acid must be added to 20 quarts of a 20% solution of acid to obtain a mixture containing a

40% solution of acid?
Mathematics
2 answers:
anygoal [31]3 years ago
8 0

Answer:

x=40

Step-by-step explanation:

0.50x + 20(0.20) = 0.40(x + 20)

0.5x+4=0.4x+8

0.1x+4=8

0.1x=4

x=40

ollegr [7]3 years ago
7 0

Answer:

40

Step-by-step explanation:

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What number added to 66 is 167
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Answer:

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Step-by-step explanation:

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3 years ago
Donna Meagle notices that on 12 out of 14 days, her clumsy coworker Jerry Gergich spills his lunch on himself. She concludes tha
pantera1 [17]

Answer:

It is an example of an empirical probability.

Step-by-step explanation:

The empirical probability, also called experimental probability of an event is the ratio of the number of outcomes in which a specified event occurs to the total number of trials, not in a theoretical sample space but in an actual experiment.

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Hope this Helps!!!

6 0
3 years ago
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8 0
3 years ago
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Answer:

2/5

Step-by-step explanation:

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