perimeter of a rectangle is 166 inches, what is the length being 5 inches more than the width?

Question

The length of a rectangle is 5 inches more than the width. If the perimeter is 166 inches, what are the length and the width?

Answer 1

rektangel, rim length=166 & leng=wide+5

half rim leng=length+wide=83

wide+(wide +5)=83

2wide=83-5=78

wide=39

leng=44

Answer 2

short side=x

long side=x+5

2(x)+2(x+5)=166

4x+10=166

4x=156

x=39

two sides are 39

two sides are 44

Answer 3

A mettallurgist has one alloy containing 25% copper and another containing 48% copper. How many pounds of each alloy must he use to make 41 pounds of a third alloy containing 30% copper?