este firie be fine
Step-by-step explanation:
20×3=60
1. 7x - 28 = 84
2. 7x = 112
3. x = 16
40 cm.
let the length of the first part be 3x, second part be 4x, third part be 5x.
where x is a positive length in cm.
why 3x,4x and 5x ?
so that the ratio of lengths of the 3 parts be 3:4:5.
total length of the stick = 3x + 4x + 5x = 12x=96cm
so x=96/12 = 8cm
therefore the largest part of the stick (5x)= 5*8 =40cm
(25-y) ^2-y^2=25
y=12
x=25-12
x=13
(13,12)
