12. the perimeter of the following triangle is 60 inches. find the lengths of the sides.
2x + 5
2x+5
5x + 5

Lengths of the sides in the given order

15 inches

15 inches

30 inches

Step-by-step explanation:

The total of the sides,

(2x + 5) + (2x + 5) + (5x + 5)...then add the variables with x together and those without x together.

; 9x + 15

Hence if the perimetre of the triangle is 60 in

then...; 9x + 15 = 60

; 9x = 45

;Hence the variable.., x = 5

Lengths of the sides,

Substitute the value of x into the given lengths of the sides,

2(5) + 5 = 15 inches

2(5) + 5 = 15 inches

5(5) + 5 = 30 inches

7. 153.86 ft

8. 12.56 ft

9. 78.5 m

10. 379.94 in

11. 132.665 m

12. 12.56 yd

13. 226.865 ft

14. 113.04 ft

15. 63.585 ft

16. 254.34 m

17. 50.24 cm

step-by-step explanation:

7.

8.

9.

10.

11.

12.

13.

14.

15.

16.

17.