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astra-53 [7]
3 years ago
5

The length of the base of an isosceles triangle is x. The length of a leg is 3x-5. The perimeter of the triangle is 39. Find X.

Mathematics
1 answer:
frozen [14]3 years ago
5 0

Answer:

x = 7

Step-by-step explanation:

In an isosceles triangle, both legs are always congruent. The length of one leg is given, and the other leg has to be the same. The perimeter of this triangle can be written as:

x+(3x-5)+(3x-5)=39

With this equation, all you need to do is solve for x.

3+3x-5+3x-5=39\\(-5-5)+(x+3x+3x)=39\\-10+7x=39\\7x=49\\x=7

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faust18 [17]
58 degrees. Just round up from multiplying .16 to 360
4 0
3 years ago
How many unique triangles can be drawn with side lengths 8 in., 12 in., and 24 in.? Explain
Debora [2.8K]

By using the triangular inequality, we will see that no triangles can be made with these side lengths.

<h3>How many triangles can be made with these side lengths?</h3>

Remember that for any triangle with side lengths A, B, and C, the triangular inequality must be true.

This means that the sum of any two sides must be larger than the other side.

A + B > C

A + C > B

B + C > A.

For the given side lengths, we will have:

8 in + 12 in > 24 in

8in + 24 in > 12 in

12 in + 24 in > 8 in.

Now, notice that the first inequality is false. So the triangular inequality is not meet. Then we can't make a triangle with these side lengths.

So we can make 0 unique triangles with these side lengths.

If you want to learn more about triangles:

brainly.com/question/2217700

#SPJ1

5 0
2 years ago
At a restaurant the bill was $35.10 with a 15% tip added on. How much is the total bill, rounded to the nearest whole cent?
blondinia [14]

Answer:

15% = 0.15

35.10 * (1 + 0.15) = $40.37



7 0
3 years ago
Helpppppppppppppppppppppppppppppppppppppppppppp
sukhopar [10]

Answer:

There are 16 squares and 12/16 is 75 percent so 75% - green

25% - white hope this helps :)

Step-by-step explanation:

5 0
2 years ago
How to find the point that is equidistant from (5,-5) and (1,1)
torisob [31]
<h3>Answer: (3, -2)</h3>

Explanation:

Your teacher wants you to find the midpoint. This is the point that is in the middle of the two given points. Let's call this M. So the distance from M to (5,-5) will be the same as the distance from M to (1,1)

The x coordinates of (5,-5) and (1,1) are 5 and 1 respectively.

Add them up: 5+1 = 6

Divide by two: 6/2 = 3

The x coordinate of the midpoint is x = 3

Repeat for the y values -5 and 1

Add: -5+1 = -4

Divide in half: -4/2 = -2

The y coordinate of the midpoint is y = -2

So the midpoint is M = (x,y) = (3,-2)

If you were to use the distance formula, you would find that

distance from (5,-5) to (3,-2) = distance from (3,-2) to (1,1)

This is what it means to be "equidistant" (aka "equally distant")

7 0
3 years ago
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