The width of a rectangle is 1 unit less than the length. The area is 20 units. What is the width, in units, of the rectangle?

4 units

Step-by-step explanation:

Let the width be w and length be l

w=l-1 (1)

Area=w*l

lw=20 (2)

Putting eq 1 in 2

l(l-1)=20

l²-l-20=0

l²-5l+4l-20=0

l(l-5)+4(l-5)=0

(l+4)(l-5)=0

Either

l+4=0 OR l-5=0

l=-4. OR. l=5

(Contrary to be given to l=-4as it is negative hence l=length =5)

Now putting l in (1)

w=5-1

w=4 units

both the histogram and the stem and leaf plot will visually show how many shoppers were of various ages within each range of data.   the histogram does not give us the specific ages of these shoppers unlike the stem and leaf plot.a histogram does not give us a true range of the data because we do not know exactly how old the shoppers were. a stem and leaf plot will give exact ages, so we can determine the exact range along with all measures of center and the others measures of center.   with the histogram, we cannot find any of these.

step-by-step explanation: