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tigry1 [53]
3 years ago
6

Please i need help with number 7 it is hard and its DUE NEXT HOUR show WORK . NO link

Mathematics
1 answer:
velikii [3]3 years ago
8 0

Answer:

Equation: 3(x+5)=60

Solution: 15 inches

Step-by-step explanation:

Let x represent the original side length of the equilateral triangle. Then, the new length of each side is x+5. Because a triangle has three sides, the new perimeter is 3(x+5), which is 60 inches. Dividing both sides by 3, we get that x+5=20, so x=15.

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