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makvit [3.9K]
2 years ago
10

Evaluate the expression when x= -3 and y=3 y-8x​

Mathematics
2 answers:
tatuchka [14]2 years ago
5 0

Answer:

27

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

<em>x</em> = -3

<em>y</em> = 3

y - 8x

<u>Step 2: Evaluate</u>

  1. Substitute in variables:                                                                                     3 - 8(-3)
  2. Multiply:                                                                                                             3 + 24
  3. Add:                                                                                                                   27
aliya0001 [1]2 years ago
5 0

\huge\textsf{Hey there!}

\large\textsf{y - 8x}\\\\\large\textsf{= 3 - 8(-3)}\\\\\large\textsf{8(-3) = \bf -24}\\\\\large\textsf{= 3 - \bf 24}\\\\\large\textsf{= \bf 27}\\\\\boxed{\boxed{\large\textsf{\huge\textsf{Answer: \bf 27}}}}\huge\checkmark\\\\\\\\\large\textsf{Good luck on your assignment and enjoy your day!}\\\\\\\\\\\frak{Amphitrite1040:)}

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A piece of wire measuring 20 feet is attached to a telephone pole as a guy wire. The distance along the ground from the bottom o
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Explanation:

Since we have given that

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H^2=B^2+P^2\\\\20^2=x^2+(x+4)^2\\\\400=x^2+x^2+8x+16\\\\400=2x^2+8x+16\\\\400=2(x^2+4x+8)\\\\200=x^2+4x+8\\\\x^2+4x-192=0\\\\x^2+16x-12x-192=0\\\\x(x+16)-12(x+16)=0\\\\(x+16)(x-12)=0\\\\x=-16\ and\ 12

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8 0
3 years ago
Marc's workout consists of swimming and practicing yoga. While swimming he burns 7 calories per minute, and while practicing yog
Scorpion4ik [409]

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Given:

Swimming burns = 7 calories per minute

Yoga burns = 5 calories per minute

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Total minutes of yoga = y

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Inequality

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Checking your answer:
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Step-by-step explanation:

7 0
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