Answer:
Perimeter =63 inches
Area = 243in²
Step-by-step explanation:
Given data
Length of computer = 18in
Width of computer = 13.5in
From the given data the computer has a rectangular shape
Perimeter of the computer = L+L+W+W= 2L+2W
Perimeter = 2(18)+ 2(13.5)
Perimeter = 36+27=63 inches
Area of rectangular shape = L*W
Area = 18 x 13.5= 243in²
The formula for the volume of a cone is useful for this.
V = (1/3)π × r² × h
Substituting the given information, you have
V = (1/3)×3.14×(2 in)²×(18.3 in)
V ≈ 76.616 in³
Your best choice is ...
C. 76.62 cubic inches
Saying that multiple choice questions are m, the equation is:
18m+19=15m+31
subtract 19 from both sides to get:
18m=15m+12
subtract 15m from both sides to get:
3m=12
divide by three to get the answer:
m=4
Each multiple choice question is worth 4 points
Step-by-step explanation:
Let the number of psychology books be 'x'.
and that of sociology books be 'y'.
x + y = 317 (given)
Number of sociology books sold was 89 less than that of psychology books.
y = x - 89
Which means,
x + x - 89 = 317
2x = 317 + 89
2x = 406
x = 406/2 = 203
y = 203 - 89 = 114
Hence, 203 psychology books and 114 sociology books were sold.
Answer:
3/4
Step-by-step explanation:
.74(75%) is equal to 75/100
The greatest common factor is 25, so divide 75 by 25 and 100 by 25.
75/25=3 100/25=4
So, 75/100 simplified is 3/4.