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OlgaM077 [116]
2 years ago
8

5. The perimeter of the shown

Mathematics
2 answers:
Katyanochek1 [597]2 years ago
8 0
21 divided by 3= 7
&;&;&;’f
Nastasia [14]2 years ago
3 0

Answer:

7 cm

Step-by-step explanation:

An equilateral triangle has all sides equal.

To find the measure of the side, simply divide the perimeter by 3. This is because a triangle has 3 sides.

21 ÷ 3 = 7

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What is m∠DHG? Enter your answer in the box.
LenaWriter [7]

the 2 equations given are vertical angles which mean they would equal the same.

Set the two equations to equal each other to solve for x:

6(x-2) = 3x+30

Simplify the left side:

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Add 12 to eac side:

6x = 3x+42

Subtract 3x from each side"

3x = 42

Divide both sides by 3:

X = 42/3

X = 14


Now you know X, replace x with 14 in the equation for DHG:

DHG = 6(x-2)

6(14-2)

Simplify:

6(12)

Multiply:

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Angle DHG is 72 degrees.

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Step-by-step explanation:

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2 years ago
A concert ticket that originally cost $46.50 is on sale for $38.75. What is the percent of decrease, rounded to the nearest tent
Arturiano [62]
You subtract 38.75 from 46.5, which is 7.75. 7.75/46.5=about .16666, or 16.7 percent.
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3 years ago
Two people spend $44 at a fair. There is an entrance fee of x dollars per person and each ride costs $3.50. If they went on the
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I think its B 
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Find the difference (x^2+3y-3)-(-2x^2+3y-1)
Sedbober [7]
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