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julsineya [31]
3 years ago
11

Consider triangle abc what is the value of y in the triangle

Mathematics
1 answer:
Yakvenalex [24]3 years ago
4 0

Answer:

y = 50

Step-by-step explanation:

All triangle angles add up to 180 degrees.

To set this equation up, you need to add everything given in the triangle and set it equal to 180:

y + y + 80 = 180

<em><u>Add like terms:</u></em>

2y + 80 = 180

<u><em>Subtract 80 from both sides:</em></u>

2y + 80 = 180

     - 80   - 80

___________

2y = 100

<u><em>Divide both sides by 2:</em></u>

y = 50

<u><em>If you're unsure, you can plug in the 50 for y:</em></u>

y + y + 80 = 180

50 + 50 + 80 = 180

100 + 80 = 180

180 = 180

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Therefore, the solution is:  x = 4,  y=1.


3 0
3 years ago
Read 2 more answers
Drag each equation to show if it could be a correct first step to solving the equation 3(x+8)=42.
lubasha [3.4K]

Answer:

The 2nd, 3rd, and last equations could be a possible first step.

The rest are no's.

Step-by-step explanation:

In the second equation, the 3 was distributed.

In the 3rd, it was separately distributed.

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6 0
3 years ago
What is the measure of ∠B?
Alenkinab [10]

Answer:

m<B = 60

Step-by-step explanation:

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3x + 4x = 10x - 45

7x = 10x - 45

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x = 15

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7 0
3 years ago
Jim needs to purchase 4.8 meters of duct tape for a project if each roll of tape contains 80 centimeters and cost $6 what is the
Evgesh-ka [11]
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3 0
3 years ago
Find the area of the figure.
kobusy [5.1K]

Step-by-step explanation:

such problems are always the combination of areas of simple figures.

in our case here the simplest way seems to me to calculate the area of the whole 15×15 square (the side lengths are 15 and 9+6 = 15) and then subtract the small 6×6 square (top left), the small 6×3 triangle (bottom right) and the larger 6×9 triangle (top right).

we know that the left side of the main square is 9+6 = 15.

we know that the missing side piece (top right) is also 6 (like its left side). and the right side piece is 15-6-6 = 3.

that is how we know the side lengths of the missing pieces.

so,

15×15 = 225 cm²

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so, the total area of the figure is

225 - 36 - 27 - 9 = 153 cm²

4 0
2 years ago
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