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2 years ago

Help simplify 2/3 ÷ 4/5

Mathematics

2 answers:

PIT_PIT [208]2 years ago

3 0

Answer:

hope it helps u............

snow_tiger [21]2 years ago

3 0

Answer:

its 5/6

Step-by-step explanation:

to make it simple just put 2/3 x 5/4

then reduce, you should have 1/3 x 5/2

multiply it and get 5/6 :]

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If 180°<θ<270°, and sin⁡θ=−3/4, what is the value of sin(−θ)?

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Answer:

$sin(-\theta)=\frac{3}{4}$

Step-by-step explanation:

Given:

180°<θ<270° and $sin(\theta)=-\frac{3}{4}$

We know for any angle $\theta$ ,

$sin(-\theta)=-sin(\theta)$

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3 years ago

What does -1/2 * 1/2 = to

sertanlavr [38]

The answer is -1/4.

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3 years ago

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2 years ago

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The coffee Lily likes is composed of 97.3% water and 2.7% cocoa. The coffee John likes is composed of 96% water and 4% cocoa. Ho

mestny [16]

30 ounces of the coffee John likes consists of

$0.96\cdot30=28.8$ ounces of water
$0.04\cdot30=1.2$ ounces of cocoa

To this mixture we're adding $x$ ounces of water, so that the new mix has a total volume of $30+x$ ounces and matches the composition of the coffee Lily likes. This means it would consist of

$0.973\cdot(30+x)=28.8+x$ ounces of water
$0.027\cdot(30+x)=1.2$ ounces of cocoa (same amount of cocoa as before because pure water is being added)

Solve for $x$ :

$0.973(30+x)=28.8+x\implies29.12+0.973x=28.8+x$

$\implies0.39=0.027x$

$\implies x\approx14.4$

###

Just to confirm: the new mixture consists of

$28.8+14.4=43.2$ ounces of water
$1.2+0=1.2$ ounces of cocoa

giving a total volume of $43.2+1.2=44.4$ ounces of coffee, and $\dfrac{43.2}{44.4}\approx0.973$ , as required.

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3 years ago

Find the slope of the line: (4, 4), (5, 3)

fredd [130]

Answer:

-1

Step-by-step explanation:

we would use the slope formula which is y2-y2/x2-x1

so 3-4/5-4= -1

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3 years ago