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ddd [48]
3 years ago
8

The perimeter of a regular pentagon is 100 centimeters. How long is each side?

Mathematics
2 answers:
Illusion [34]3 years ago
7 0
A Pentagon has 5 sides, therefore just divide 100 into 5 sides .
100÷5 = 20 centimeters
stiks02 [169]3 years ago
5 0
Each side is twenty centimeters. 
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terry opened a savings account in December with $132 and saved $27 each month beginning in January the value of terrys account i
liq [111]
Let S be the amount in a savings account. 
Let m be the number of months.

General equation
S = 132 + 27m

Specific question
July is the 7th month of the year including both January and July.
S = 132 + 7*27
S = 132 + 189
S = 321

Reasonableness?
Good question. You could estimate an answer.
Start with 150 dollars and say that you add 25 a month.
7 * 25 = 175
S = 150 + 175 = 325 All of this was done in my head. Since the exact answer obtained using the formula is 321, I think that's pretty reasonable using my estimate is a guide.
4 0
3 years ago
In ΔRST, s = 7.3 inches, t = 3.1 inches and ∠R=138°. Find the area of ΔRST, to the nearest 10th of a square inch.
Oksana_A [137]

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Step-by-step explanation:

Five triangles make up the pentagon.

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Substitute values and calculate

8 0
3 years ago
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madreJ [45]
B
hope this helps!!!!!
7 0
3 years ago
3. A computer is worth $4000 when it is new. After each year it is worth half what it was the previous year
MrMuchimi

Answer:

Answer is 500

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Step-by-step explanation:

First year

4,000 divided by 2,000=2,000

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Third year

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7 0
3 years ago
Read 2 more answers
Which relations represent functions?
Brut [27]
The first and last represent functions, no function has an input with two separate outputs
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