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SCORPION-xisa [38]
3 years ago
15

Which value of x makes the equation below true? 7 + 2x = 4x - 5 SHOW WORK

Mathematics
1 answer:
Yuliya22 [10]3 years ago
8 0
7 + 2x = 4x - 5 \\ \\ 7 = 4x - 5 - 2x \ / \ subtract \ 2x \ from \ each \ side \\ \\ 7 = 2x - 5 \ / \ simplify \\ \\ 7 + 5 = 2x \ / \ add \ 5 \ to \ each \ side \\ \\ 12 = 2x \ / \ simplify \\ \\  \frac{12}{2} = x \ / \ divide\ each \ side \ by \ 2 \\ \\ 6 = x \ / \ simplify \\ \\ x = 6 \ / \ switch \ sides \\ \\ Answer: \fbox {x = 6}
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If the product of two rational numbers is (-9/16) and one of them is (-4/15) find the other number.​
ololo11 [35]

Given:

  • The product of two numbers is (-9/16).
  • One of the numbers is (-4/15)

To find: The other number.

Answer:

Let's assume the unknown number to be 'x'.

(-4/15) × x = (-9/16)

× = (-9/16) ÷ (-4/15)

When we divide a fraction by another fraction, the divisor will be taken in its reciprocal form.

x = (-9/16) × (-15/4)

x = 135/64

Therefore, the other number is 135/64.

Hope it helps. :)

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3 years ago
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Anit [1.1K]

Answer:

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4 years ago
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nasty-shy [4]

Answer:

7 + 4\sqrt{3}

Step-by-step explanation:

note that \sqrt{a} × \sqrt{a} = a

Given

(2 + \sqrt{3} )² = (2 + \sqrt{3} )(2 + \sqrt{3} )

Each term in the second factor is multiplied by each term in the first factor, that is

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erastova [34]

Answer:

If 4 fish are randomly selected, what is the probability that the mean weight will be between 9.6 and 15.6 lb? Round your answer to four decimal places.

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What is the output of the following Python program? list1 = [2, 3, 4] list2 = [1, 5] list3 = [0] list3 = list2 + list1 print(lis
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Answer: the answer is b

Step-by-step explanation:

from the initial list 3 is contain 0 that is [0]

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[1,5,2,3,4]

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