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trapecia [35]
3 years ago
9

A wizard-in-training has 300 grams of 20% liquid-gold solution. He wishes to drain some and replace it with an 80% solution, so

that he gets 300 grams of 35% solution. How many grams should the wizard drain and replace with 80% solution?
Mathematics
2 answers:
MakcuM [25]3 years ago
3 0

Answer:

Hi so I just did this :) Here's the answer: 75 grams.

Step-by-step explanation:

Just basically blah blah blah

algol133 years ago
3 0

Answer:

75 grams

Step-by-step explanation:

I have in on rsm and i put it in and its right :)

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3 years ago
I need help!! Don't just answer for the points!!
Kazeer [188]

Answer: Equation: E= 20H

Earning's after 15 hours: E= 20(15)

                                          E = 300

Step-by-step explanation:

The equation would be E =20H. E means her total earnings. 20 is how much money she earns per hour. H is how many hours she tutors. If you put it all together, you get E = 20H.

To solve how much she would get for 15 hours, plug in 15 for H so E=20(15). 20 x 15 = 300. Therefore, she will get $300 after teaching for 15 hours.

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3 years ago
Can someone please help me??
aivan3 [116]

Answer:

-16 is the answer after evaluating

Step-by-step explanation:

{b }^{2}  - 7b - 6 \\ 5 { }^{2}  - 7 \times 5 -6 \\ 25 - 35 - 6 \\ 25 - 41 \\  - 16

4 0
3 years ago
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Please help me with this
Kay [80]

Answer:

242

Step-by-step explanation:

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7 0
2 years ago
 Given that 310 = 59 049 , what is 3-10 expressed as an exact value?
Advocard [28]
x^{-n}=\frac{1}{x^n} \\ \\
3^{10}=59049 \\
3^{-10}=\frac{1}{3^{10}}=\frac{1}{59049} \\ \\
\boxed{3^{-10}=\frac{1}{59049}}
4 0
3 years ago
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