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Soloha48 [4]
3 years ago
5

X=5 and y=7 for algebraic expression 2(4x-3) + 6(3y-5)

Mathematics
2 answers:
garik1379 [7]3 years ago
8 0

Answer:

130

Step-by-step explanation:

2(4x - 3) + 6(3y - 5)

2(4 × 5 - 3) + 6(3 × 7 - 5)

2(20 - 3) + 6(21 - 5)

2(17) + 6(16)

34 + 96

130

finlep [7]3 years ago
3 0

Answer:

The answer would be 130

Step-by-step explanation:

First, substitute the variable values into the equation.

2(4(5)-3) + 6(3(7)-5)

Next, solve for the inside parentheses.

2(20-3) + 6(21-5)

Now solve the parentheses again.

2(17) + 6(16)

Then multiply the numbers.

34 + 96

Finally add the last two numbers together to get your answer of 130.

Hope this helped!

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From data gathered in the period 2008−2012, the yearly value of U.S. exports can be modeled by the function E(x) = −228x3 + 2,25
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Answer:

The total value the U.S. imported and exported is 19364 billion dollars

Step-by-step explanation:

* Lets explain how to solve the problem

- The yearly value of U.S. exports can be modeled by the function

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# x is the number of years after 2008

# E(x) is the value of exports in billions of dollars

- The yearly value of U.S. imports can be modeled by the function

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* We need to calculate the total value the U.S. imported and

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∵ x is the number of years after 2008

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∴ E(x) = -228(4)³ + 2,252.8(4)² - 6,098.5(4) + 11,425.8

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∴ I(x) = 10879.2 billion dollar

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∴ The total value = 19364 billion dollars

* The total value the U.S. imported and exported is 19364 billion dollars

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neonofarm [45]

Answer:

True

Step-by-step explanation:

We have two salaries:

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If I earn 60% more than you

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