3 years ago

Independent assessment 3

Mathematics

1 answer:

Akimi4 [234]3 years ago

8 0

It’s blurry!!!!!!!!!!!

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A chemist has a solution of 65% pure acid and another solution of 30% pure acid. How many gallons of each will make 350 gallons

AysviL [449]

Answer:

250 of 65% acid

100 gallons of 30% acid

Really sorry if this is incorrect, I had this question on my Lesson 16 test, and I don't know if it's correct or not...

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3 years ago

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136 is 85% of what number?

Arte-miy333 [17]

X * 0.85 = 136
x = 136/0.85
x = 160

hope this helps :)

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3 years ago

<img src="https://tex.z-dn.net/?f=%5Csqrt%7B60" id="TexFormula1" title="\sqrt{60" alt="\sqrt{60" align="absmiddle" class="latex-

Citrus2011 [14]

Answer:

7 & 8

Step-by-step explanation:

$\sqrt{60}$ = 7.7459666924148337703585307995648

Therefore, it lies between the whole numbers 7 & 8.

Hope this helps :)

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3 years ago

Find two rational expressions a / b and c / d that produce the result x − 1 / x2 when using the following operations. Answers

Mars2501 [29]

Answer:

a) Let $\frac{a}{b}=\frac{-1}{x^2}, \text{ and } \frac{c}{d}=\frac{1}{x}$ .

Observe that

$\frac{a}{b}+\frac{c}{d}=\frac{-1}{x^2}+\frac{1}{x}=\frac{-x+x^2}{x^3}=\frac{x(x-1)}{xx^2}=\frac{x-1}{x^2}$

Let $\frac{a}{b}=\frac{1}{x}, \text{ and } \frac{c}{d}=\frac{1}{x^2}.$

Observe that

$\frac{a}{b}-\frac{c}{d}=\frac{1}{x}-\frac{1}{x^2}=\frac{x^2-x}{x^3}=\frac{x(x-1)}{xx^2}=\frac{x-1}{x^2}$

Let $\frac{a}{b}=\frac{x-1}{x}, \text{ and } \frac{c}{d}=\frac{1}{x}.$

Observe that

$\frac{a}{b}*\frac{c}{d}=\frac{x-1}{x}*\frac{1}{x}=\frac{(x-1)1}{x*x}=\frac{x-1}{x^2}$

Let $\frac{a}{b}=\frac{x-1}{x}, \text{ and } \frac{c}{d}=\frac{x}{1}.$

Observe that

$\frac{a}{b}\div\frac{c}{d}=\frac{x-1}{x}\div\frac{x}{1}=\frac{x-1}{x}*\frac{1}{x}=\frac{x-1}{x^2}$

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3 years ago

What is the perimeter of the triangle?<br> 2(x+3)<br> 6x<br> 4(x – 10)

san4es73 [151]

Answer:

Step-by-step explanation:

12x-34

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3 years ago

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