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Gelneren [198K]
3 years ago
8

A triangle has side lengths of (8s + 8) centimeters, (s +9) centimeters, and

Mathematics
1 answer:
quester [9]3 years ago
5 0

Answer:

Step-by-step explanation:

(16.2t+3.4u+2.9)cm

Step-by-step explanation:

A triangle is a plane shape that has three sides. The perimeter of a triangle is gotten by taking the sum of all the lengths of the three sides. Let the length of the three sides by s1, s2 and s3, the perimeter of the triangle will be expressed as;

P = s1+s2+s3

Given the side lengths

s1 = (8.1t-6.1)cm

s2 = (8.1t+7.1)cm

s3 = (3.4u+1.9)cm

Perimeter of the triangle = 8.1t-6.1+8.1t+7.1+3.4u+1.9

collect the like terms

P = 8.1t+8.1t+3.4u-6.1+7.1+1.9

P = 16.2t+3.4u+2.9

Hence the expression that represents the perimeter, in centimeters, of the triangle is  (16.2t+3.4u+2.9)cm

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vlabodo [156]

Answer:

7,295.16

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Karen has $1.70 in coins. Karen has 8 coins, all of which are quarters or dimes.
Vilka [71]

Answer:

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Step-by-step explanation:

Let

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y ----> the number of dimes coins Karen has

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we know that

<em>Equation that represent the amount of coins Karen has</em>

x+y=8

isolate the variable y

y=8-x ----> equation A

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solve for x

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3 years ago
What does it mean when there is a number above and below a dash in algebra?
AleksAgata [21]

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I have also seen it used to refer to the average:

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