The Ecology Club was planning to take a field trip either to the wesomt or the
mountains. The club president surveyed all of the members to determine the proberen
trip. The results are displayed in the table below
FIELD TRIP SURVEY
Students
Seventh Grade
Eighth Grade
Seacoast Mountains
42
28
30
Total
70
80
Total
72
78
150
Which statement is true about the results of the survey
A 20% of eighth-grade students preferred the sescoast
B 32% of seventh grade students preferred the mountains
C 10% of students preferred the mountains
D 48% of students preferred the seacoast

step-by-step explanation:

one of the most important purposes of surface treatment is to alter surface properties according to the requirement of specific applications. for example, hydrophobic coating has been utilized on windshield and eyeglasses. gold atom monolayer on substrate has become a popular surface bioconjugation strategy.  

area of rectangle a is 2 times that of rectangle b that means 2x+x =   36cm^2

3x = 36cm ^2

x = 36/3

x= 12cm^2

and 2x = 24cm^2

now side of square = are divided by sides = 36/4 = 6cm

that means length of rectangle a and b is 6cm too

now for rectangle a,

l*b = area

= 6*y=24

y=24/6 = 4

therefore dimensions of rectangle a are- length = 6cm, breadth = 4cm

and for rectangle b, length = 6cm and breadth = 6-4 = 2cm.

hope this .