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Vaselesa [24]
2 years ago
11

Triangle angle - sum theorem what is the value of y?

Mathematics
1 answer:
dangina [55]2 years ago
3 0

Answer:

y = 5

Step-by-step explanation:

All angle measures in a triangle add up to 180°.

  • This means that 63 + 82 + 7y = 180

<u>Solving for Y:</u>

Step 1: Combine like terms.

  • (7y) + (63+82)=180
  • 7y + 145 = 180

Step 2: Subtract 145 from both sides.

  • 7y + 145 - 145 = 180 - 145
  • 7y = 35

Step 3: Divide both sides by 7.

  • \frac{7y}{7} = \frac{35}{7}
  • y = 5

Step 4: Check if solution is correct.

  • 7(5) + 63 + 82 = 180
  • 35 + 63 + 82 = 180
  • 98 + 82 = 180
  • 180 = 180

Therefore, y = 5.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

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The length of a rectangular garden is 2 feet more than twice it's width. If the area is 40 square feet, how much fencing would b
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Answer:

w =4 ft and l =10 ft

Step-by-step explanation:

Let w = width

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Distribute

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Using the zero product property

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Since we cant have a negative length

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3 years ago
Can someone explain to me step by step how to do -2.5 x -20.
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Step-by-step explanation:

-2.5 × -20

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