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3 years ago

13

Miss Hudspeth has a supply of 30% alcohol solution and a supply of 50% alcohol solution. How much of each solution should she mi

x together to get 60mL of 34% alcohol solution for an experiment in her chemistry class

1 answer:

Vikki [24]3 years ago

6 0

Um id say 20% of the 30% solution and 14% of the 50 % i think, does it give you answer choices?

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If 75% of x is 18 then find the value of x?

VladimirAG [237]

Set up an equation:

0.75x = 18

Divide both sides by 0.75:

x = 18/0.75

x = 24

Answer: 24

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kifflom [539]

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Brut [27]

Answer:

x⁵+ 45x⁴+ 810x³+ 7290x²+ 32805x +59049

Step-by-step explanation:

Greetings !

Given expression

$(x + 9) {}^{5}$

write 5 as a sum

$(x + 9) {}^{3 + 2}$

$use \: a {}^{m + n} = a {}^{m} \times a {}^{n} to \: expand \: the \: expression.$

$(x + 9) {}^{3} \times (x + 9) {}^{2}$

Use (a+b)³=a³+3a²b+b³ to expand the expression

$(x {}^{3} + 27x {}^{2} + 243x + 729) \times (x + 9) {}^{2}$

Use (a+b)²=a²+2ab+b² to the second expression to expand it

$(x {}^{3} + 27x {}^{2} + 243x + 729) \times(x {}^{2} + 18x + 81)$

Finally, simplify the expression gives

$x {}^{5} + 45x {}^{4} + 810x {}^{3} + 7290x {}^{2} + 32805x + 59049$

Hope it helps!

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3 years ago

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The discount sales price would be $218

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