The dishes have been sorted into cups and plates. the number of plates is four less than two times the number of cups. the dishes are 60% plates. how many cups are there?
a) 3
b) 6
c) 8
d) 9

Option C) 8 cups

Step-by-step explanation:

Let

x> the number of cups

y ---> the number of plates

we know that

y=2x-4 > equation A

60%=60/100=0.60

y=0.60(x+y) > equation B

Substitute equation A in equation B and solve for x

2x-4=0.60(x+2x-4)

2x-4=0.6x+1.2x-2.4

2x-4=1.8x-2.4

2x-1.8x=4-2.4

0.2x=1.6

x=1.6/0.2

x= 8 cups

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: