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Flauer [41]
3 years ago
9

The perimeter of an equilateral triangle is 63 in.

Mathematics
2 answers:
hoa [83]3 years ago
6 0

Answer:

Step-by-step explanation:just do 4x+3

Mashcka [7]3 years ago
4 0

Because it is an equilateral triangle, all three sides are the same length.  Because of this, you need to divide 63/3 to find out the length of one side.  63/3=21.  So this tells us that 4x+3=21.  Now that we have the equation, we need to solve for x. To do this, subtract the 3 on both sides to get 4x alone.  21-3=18.  So now we know that 4x=18.  Now divide 4 on each side to get x alone.  X= 18/4, which simplifies to 9/2.  In decimal form, x=4.5.

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What is the anwere to this problem in the simple form
Deffense [45]
It is in simple form. There is absolutely nothing more that can be done, unless it is a joke. And math jokes are very hard to come by.

I don't think that y(y - 1)/(a + 2b) is any simpler.

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5 0
4 years ago
What are the combining like terms ?
dimaraw [331]

Answer:

2r+1

Step-by-step explanation:

-5r-8+9+7r= (-5r+7r)+(-8+9)

Solve:

2r+1

Hope this helps!

7 0
3 years ago
Read 2 more answers
Solve the system y = -x + 7 and y = -0.5(x - 3)2 + 8<br> I'll mark the brainliest!!!!!!!!!
hram777 [196]

Answer:

(1, 6)

(7, 0)

Step-by-step explanation:

y = -x + 7

y = -0.5(x - 3)² + 8

-x + 7 = -0.5(x - 3)² + 8

-x + 7 = -0.5(x² - 6x + 9) + 8

-x + 7 = -0.5x² + 3x - 4.5 + 8

       0 = -0.5x² + 4x - 3.5

       0 = x² - 8x + 7

       0 = (x - 7)(x - 1)

x - 7 = 0 or x - 1 = 0    

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7 0
3 years ago
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Larry makes sandwiches for lunch everyday. He can make 6 sandwiches with every 3 tomatoes he buys. If he bought 6 tomatoes, how
malfutka [58]

Answer:

12 sandwiches

Step-by-step explanation:

Make a proportion

He can make 6 sandwiches with 3 tomatoes, and x sandwiches with 6 tomatoes

6/3=x/6

Multiply both sides by 6 to isolate the variable, x

6*6/3=x/6*6

12=x

So, with 6 tomatoes, he can make 12 sandwiches

4 0
3 years ago
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A bag of Jolly Ranchers contains 300 pieces of which 28% are blue. How many are not blue?
Harrizon [31]

Answer:

216

Step-by-step explanation:

300 x .28 = 84

300 - 84 = 216

3 0
3 years ago
Read 2 more answers
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