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ratelena [41]
4 years ago
12

A chemist pumps hydrogen gas (H2) from a tank

Mathematics
1 answer:
son4ous [18]4 years ago
4 0

Answer:

if it is a multiple choice question

the answer is 1.47 mol H2

Step-by-step explanation:

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What is the area of a rectangle with a length of 9
ANEK [815]

Answer:

We are given a length of 9 cm and a width of 4 cm and we are also told that it our shape is a rectangle.  This means that we are able to use the rectangle formula which is A=l*w.

Therefore, we can just multiply 9 cm by 4 cm and we get A = 36\ cm^2

<u><em>Hope this helps!  Let me know if you have any questions</em></u>

8 0
2 years ago
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nikdorinn [45]
Light it up like it’s dinimite
5 0
3 years ago
As part of his retirement strategy, John plans to invest $210,000 in two different funds. He projects that the moderately high r
Maslowich

Answer:

Therefore he invested $60,000 at 9% per year and $(210,000-60,000)=$150,000 at 4% per year.

Step-by-step explanation:

Given John plans to invest $210,000 in two different funds. He projects that the moderately high risk investments should return, overtime 9% per year,while low risk investments should return about 4% per year.

He wants a supplemental income of$11,400 a year.

Let , he invested $x at 9% per year and $(210,000-x) at 4% per year.

interest=\frac{prt}{100}   p = principle , r = rate of interest and t = time

The interest earns at 9% per year= \frac{x\times 9\times 1}{100}

The interest earns at 4% per year=\frac{(210,00-x)\times 4 \times 1}{100}

According to the problem,

\frac{x\times 9\times 1}{100}+\frac{(210,00-x)\times 4 \times 1}{100}= 11400

\Leftrightarrow 9x+840000-4x=11400 \times 100

\Leftrightarrow 5x=1140000-840000

\Leftrightarrow x=\frac{300000}{5}

\Leftrightarrow x=60,000

Therefore he invested $60,000 at 9% per year and $(210,000-60,000)=$150,000 at 4% per year.

7 0
3 years ago
Kim made 4 cups of chili . She ate 1 3/4 of it for lunch how many cups of chili did Kim have over?
kkurt [141]

Answer:

2 1/4

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
If you're creative, I need help. I am doing a math project where I need to define 20 words and include a picture and some facts
valentinak56 [21]

Answer:

Powerpoint

Step-by-step explanation:

I think that a powerpoint presentation would be best. With the first slide, put the picture and a title. With each slide, put more than one word and maybe an example. Make it colorful and maybe put some math puns in some of them.

Hope this helps.

6 0
4 years ago
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