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STALIN [3.7K]
2 years ago
9

A chemist has three different acid solutions. The first acid solution contains 25%

Mathematics
1 answer:
PilotLPTM [1.2K]2 years ago
8 0
Solution:
Let the volume (in litres) of acids used be:
x1=amount of 25% acid
x2=amount of 40% acid
x3=3*x2=amount of 60% acid
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A dozen eggs cost 3.84 at this rate how much would 50 eggs cost
Zina [86]

Answer:

50 eggs would cost 16$

Step-by-step explanation:

A dozen eggs is 12. So for 4 dozen eggs, you get 48. 48 eggs is 15.36$. If you divide the 3.84 to 12, you will get the individual price for each egg. The individual price for each egg is .32 cents. You need to add 2 more eggs to the 4 dozen to get 50 eggs. You times .32 to 2 and you get .64. After that you add .64 to the price of the 4 dozen eggs and you will get 16$

Simple version:

dozen eggs =12, cost 3.84$

4 dozen eggs= 48, cost 15.36$

3.84$ divided by 12 = .32 cents (price of the individual egg)

Add two of the individual eggs together and add it to 15.36$

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2 years ago
A students tuition was $4200. A loan was obtained for 6/7 of the tuition. How much was the loan ?
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$4,200 divided by 6/7 equals $100 


7 0
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VARVARA [1.3K]

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Step-by-step explanation:

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First you multiply 20 by .15 and you get 3. Subtract 3 by 20 and you get 17. Now multiply $17 by 30 and you get 510. She spent $510 on 30 calculators

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3 years ago
BRAINLIEST TO CORRECT ANSWER!!
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P(C/Y) = 15/30 = 1/2 = 0.5
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