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3 years ago

What is the value of X?

Mathematics

1 answer:

Airida [17]3 years ago

3 0

Answer:

$x=45$

Step-by-step explanation:

Because the outer angles of a parallelogram always add up to $360$ °, the followijg equation can be used:

$3x+x+3x+x=360→8x=360→x=45$

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Since you don't know the value of b about the best that you could do is:

(2b)^4

16b^4

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3 years ago

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An airplane on autopilot took 5 hours to travel 3,595 kilometers. What is the unit rate for kilometers per hour?

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Answer:

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Step-by-step explanation:

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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.

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

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Subtracting 34 times first equation from second equation,

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

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3 years ago

Please help it’s argent!!

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Answer:

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2 years ago

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Step-by-step explanation:

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