The length of the base on an isosceles triangle is 5x. The length of
a leg is 6x + 8. The perimeter of the
triangle is 107. Find the length of the
base.

455/17 or 26 13/17

Step-by-step explanation:

Since the triangle is an isosceles triangle the legs are the same length.

2(6x+8) + 5x= Perimeter

12x+16+5x= Perimeter

Perimeter =107

17x=107-16

17x=91

x=91/17

Since we are trying to find the base which is 5x, we can substitute.

5*91/17= 455/17 or 26 13/17

c

step-by-step explanation:

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

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