Answer:
Step-by-step explanation:
Perimeter=2(l+b)
=900=2(l+b)
let width be x
=900=2(70+x+x)
=900=2(70+2x)
=900÷2=70+2x
=450=70+2x
=450-70=2x
=380=2x
=380÷2=×
x=190
so, width = x
=width=190
breadth=190+70
=breadth=260
Answer:
x = -1, -1/2
Step-by-step explanation:
All you would need to do is multiply $140 by 3% and you would get $4.20 step by step 140x0.3=4.20 or 140x3%=4.20