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zvonat [6]
3 years ago
15

If the perimeter is 102, how long is the longest side?☆☆☆

Mathematics
2 answers:
erik [133]3 years ago
5 0

Perimeter is the sum of all the sides .The given sides are : 10a-4 ,6a+8,6a+8,12a

The given perimeter is 102 .We can form an equation:

10a-4+6a+8+6a+8+12a=102

Adding like terms :

34a +12=102

Subtracting 12 both sides:

34a= 90

Dividing by 34 both sides:

a=-2.65.

The given sides are :

6a+8= 23.9

12a= 31.8

10a-4=22.5

Among these 31.8 is the largest side .

So the side having 12 a length is largest.

fgiga [73]3 years ago
5 0
I believe the answer is 12a.
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garik1379 [7]

Answer:

Step-by-step explanation:

If the lines are parallel, it means that the slopes are the same.  To write an equation in the slope intercept form, we need the slope and the y-intercept.  We are given the slope.  We need to find the y-intercept.  We can use the slope and the point to help us.  The point is written in the form (x,y).  In this case the point is (2,4) so we will use 2 for x and 4 for y.

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2 years ago
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Answer:

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Step-by-step explanation:

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