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ExtremeBDS [4]
3 years ago
8

ANSWER PLZ 5TH GRADE MATH​

Mathematics
2 answers:
yarga [219]3 years ago
7 0

Answer:39.508

Step-by-step explanation:

1. subtract 24.07-5.316+18.754

2. multiply 18.754  by 2 = 39.508

34kurt3 years ago
5 0

Answer:

18.754

Step-by-step explanation:

you just subtract it on a calculator

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Nostrana [21]
Multiply 2,500 by 1.50 which is B.
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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.

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
At what point is the function y=(x+3)/(x^(2)-7x+12) continuous
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If a function is defined as

h(x)=\dfrac{f(x)}{g(x)}

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x^2-7x+12=0

To solve this equation, we can use the formula x^2-sx+p=0

It means that, if the leading terms is 1, then the x coefficient is the opposite of the sum of the roots, and the constant term is the product of the roots.

So, we're looking for two terms whose sum is 7, and whose product is 12. These numbers are easily found to be 3 and 4.

So, this function is continuous for every real number different than 3 or 4.

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Answer:

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Step-by-step explanation:

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10 +  \frac{c}{3}

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