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Shalnov [3]
3 years ago
13

3(x+1)+11 = -2(x+13) Thank you for the help

Mathematics
2 answers:
iVinArrow [24]3 years ago
7 0

Answer:

x = -8

Step-by-step explanation:

3(x+1)+11=-2(x+13)

3x+3+11=-2x-26

3x+14=-2x-26

5x=-40

x=-8

GrogVix [38]3 years ago
7 0

Answer:

x = -8

Step-by-step explanation:

Step 1: Write equation

3(x + 1) + 11 = -2(x + 13)

Step 2: Solve for <em>x</em>

  1. Distribute: 3x + 3 + 11 = -2x - 26
  2. Combine like terms: 3x + 14 = -2x - 26
  3. Add 2x to both sides: 5x + 14 = -26
  4. Subtract 14 on both sides: 5x = -40
  5. Divide both sides by 5: x = -8

Step 3: Check

<em>Plug in x to verify it's a solution.</em>

3(-8 + 1) + 11 = -2(-8 + 13)

3(-7) + 11 = -2(5)

-21 + 11 = -10

-10 = -10

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This prism would essentially look like a really tall rectangle, since the height is such a large number. I wouldn't accurately represent the units on graph paper, if I were you. Just label the sides with the numbers I gave you.

Another prism with a volume of 2400 might be a rectangular prism with a length of 8, a width of 10, and a height of 30. 

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This would also be a tall rectangle, although it isn't as tall. Keep in mind that l x w x h is only the volume formula for a rectangular prism. I only used rectangular prisms because they would be the easiest for this example. A triangular prism has a different volume formula.
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Marsha is buying a new cell phone. She has a 45% off coupon from the store. She pays $275 for the cell phone. What is the price
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Answer:

The price of the cell phone without the coupon= $500

Step-by-step explanation:

Step 1: Express discounted amount

The discounted amount can be expressed as a function of the original  cost of the phone as follows;

D=r×A

where;

D=discounted amount

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