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mr Goodwill [35]
3 years ago
15

I need the equation for this ASAP!

Mathematics
2 answers:
Sindrei [870]3 years ago
8 0

Answer:

5.714 liters of the 5% solution and 4.286 of the 40%.

Step-by-step explanation:

Let x be the volume of 40% solution and y = volume of the 5% solution.

x + y = 10

0.40x + 0.05y = 0.20(x + y)

From the first equation x = 10 -y so we have:

0.40(10 - y) + 0.05y = 0.20( 10 - y + y)

4 - 0.40y + 0.05y = 2

-0.35y = -2

y = 5.714 liters of the 5%.

and x =  10 - 5.714 = 4.286  liters of the 40% solution.

Step-by-step explanation:

maxonik [38]3 years ago
8 0
I do not understand
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Answer:

<em></em>(1,-2)<em></em>

<em></em>

Step-by-step explanation:

Given

The attached graph

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3 0
2 years ago
<img src="https://tex.z-dn.net/?f=%20-%200.4%20%2B%201.5%283.1%29" id="TexFormula1" title=" - 0.4 + 1.5(3.1)" alt=" - 0.4 + 1.5(
ANTONII [103]
Hi,

- 0.4  + 1.5(3.1) \\  - 0.4 + 1.5 \times 3.1 \\  - 0.4 + 4.65  = 4.25


Hope this helps.
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