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3 years ago

Apply the distributive property to factor out the greatest common factor. 12+20

Mathematics

1 answer:

vladimir2022 [97]3 years ago

6 0

Answer:

4 is the answer.

Step-by-step explanation:

Braunliest?

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Which of the following expressions is equal to tan205°?<br> tan55°<br> tan25°<br> tan25°

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Answer:

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3 years ago

Parenthesis 3 plus negative square root of 16 parenthesis 6 minus negative square root of 64

inessss [21]

Answer: 2

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3 years ago

A metallurgist has one alloy containing 34% copper another containing 48% copper. How many pounds of each alloy must he use to m

Zielflug [23.3K]

Answer:

<h2>36.14 pounds of 34% copper alloy and 9.86 pounds of 48% copper alloy</h2>

Step-by-step explanation:

First alloy contains 34% copper and the second alloy contains 48% alloy.

We wish to make 46 pounds of a third alloy containing 37% copper.

Let the weight of first alloy used be $x$ in pounds and the weight of second alloy used be $y$ in pounds.

Total weight = $46\text{ }pounds=x+y$ $-(i)$

Total weight of copper = $37\%\text{ of 46 pounds = }34\%\text{ of }x\text{ pounds + }48\%\text{ of }y\text{ pounds }$

$\dfrac{37\times 46}{100}=\dfrac{34x}{100}+\dfrac{48y}{100}\\\\ 34x+48y=1702$ $-(ii)$

Subtracting 34 times first equation from second equation,

$34x+48y-34x-34y=1702-34\times46\\14y=138\\y=9.857\text{ }pounds \\x=36.143\text{ }pounds$

∴ 36.14 pounds of first alloy and 9.86 pounds of second alloy were used.

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3 years ago

Can someone please answer this question please answer it correctly and please show work please help me I need it

WINSTONCH [101]

Answer:

Step-by-step explanation:

-19-11 = -19 + (-11)

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3 years ago

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Write an equation in slope-intercept form of a line that contains points (2-4)<br> and (5,8)

Svetllana [295]

Answer:

y = 4x - 12

Step-by-step explanation:

Please let me know if you want me to add an explanation as to why this is the answer/how I got this answer. I can definitely do that, I just wouldn’t want to write it if you don’t want me to :)

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3 years ago