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Romashka [77]
3 years ago
7

The first side of a triangle is twice the length of the second side; the third side is 20 feet less than three times the second

side. The perimeter of the triangle is 106 feet. Find the three sides.
Mathematics
1 answer:
oee [108]3 years ago
4 0
Let the second side be x

then,
first side = twice the length of the second side
= 2x

third side = 20 feet less than three times the second side
3 (second side ) - 20
= 3 (2x) -20
= 6x - 20

perimete of a triangle = sum of all sides,

substitute the values we know,
and you'll be left with this equation

106 = x + 2x + 6x - 20
106+ 20 = 9x
126 = 9x
126/9 = x
14 = x

so,

measure of second side = x = 14 feet

measure of first side = 2x = 2 (14) = 28 feet

measure of thurd side = 6x - 20 = 6 (14)-20 = 84- 20 = 64 feet.
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3 years ago
Hector enters a competition to guess how many stuffed animals are in a box. Hector’s guess is 35 stuffed animals. The actual num
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Answer:20%

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Calculate the sum or difference: 7/ 35

Cross out the common factor: 1/5

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Write as a single fraction: 20/5x20

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Help how to solve! 24=3r divided by 4
zhenek [66]

24=3r/4

Multiply both sides by 4

24=(3r)/4

(24)*(4)=(3r/4)*(4)

96=3r

Flip the equation

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Now lets check if the answer is good

24=3(32)/4

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You see , the answer is good .


I hope that's help ! Let me know .

6 0
3 years ago
What is the interquartile range (IQR) of the following data set?
OleMash [197]

Answer:

9

Step-by-step explanation:

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in ascending order

3, 3, 3, 3, <u>4, 5,</u> 5, 5, 6, 7, 8, 8, 10, 11, 12, <u>12, 15,</u> 17, 19, 36, 41

The median is Q_2=8

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Thus, the interquartile range is

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3 years ago
Rewrite the rational exponent as a radical by extending the properties of integer exponents. 2 7/8 divided by 2 1/4
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3 years ago
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