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Natalka [10]
2 years ago
7

Lucia quiere repartir 4/5 litros de leche entre sus dos hijos en partes iguales. ¿Cuánto le dará a cada hijo?

Mathematics
1 answer:
Harman [31]2 years ago
3 0
Maybe speak American
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A company wants to increase the 10% peroxide content of its product by adding pure peroxide (100% peroxide). If x liters of pure
makvit [3.9K]

Answer:

There should be 125 litters of pure peroxide added to produce a new product that is 28% peroxide.

Step-by-step explanation:

The problem provides us with an equation we can use to find the concentration C of the new mixture, which is:

C=\frac{x+0.1(500)}{x+500}

which will give us the concentration C as a decimal number.

We are interested in getting a concentration of 28%, which is written as 0.28 in decimal form. This is our C.

Now we can substitute it into the equation:

0.28=\frac{x+0.1(500)}{x+500}

and now we can solve for x. We can start by multiplying both sides of the equation by (x+500) so we get:

0.28(x+500)=x+0.1(500)

Next, we can distribute dhe 0.28 on the left of the equation and we can also multiply the 0.1(500) on the right side, so we get:

0.28x+140=x+50

so now we can subtract an x from both sides so we get:

0.28-x+140=x-x+50

which yields:

-0.72x+140=50

Now, we can subtract a 140 from both sides, so we get:

-0.72x+140-140=50-140

Which yields:

-0.72x=-90

and finally we can divide both sides into -0.72 so we get:

\frac{-0.72x}{-0.72}=\frac{-90}{-0.72}

x=125lt

So we need to add 125 litters of pure peroxide to produce a new product that is 28% peroxide.

6 0
3 years ago
This scatterplot and regression line below show the relationship between the average rent for a 1-bedroom apartment in New York
mr Goodwill [35]

Answer: That the average price of a 1-bedroom apartment in New York in the year 2000 was around $800.

Step-by-step explanation:

In this case, x represents the number of years after the year 2000.

Then we can think that x = 0, represents the year 2000 itself.

Now, remember that the y-intercept is the value of y when we have x = 0.

Then the y-intercept gives information about the average price of a 1-bedroom apartment in the year 2000.

The information that we can conclude with this is that the average price of a 1-bedroom apartment in New York in the year 2000 was around $800.

6 0
3 years ago
Simplify the expression (4 + 5i)(4 - 5i).<br>16 - 20i<br>16 + 20i<br>-9<br>41​
AnnZ [28]

Answer:

The answer i got was 41. i just took a test with the same problem and it was correct. Hope this helps.

Step-by-step explanation:

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What is 3m minus 4n minus 8
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the answer is 0000000000000000
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Step-by-step explanation: I think

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