Answer:
The formula of volume of cube is l*b*h
45*25*10=11250 cubic cm
Step-by-step explanation:
volume =length×width ×height
given:
length:45 cm
width:25 cm
height(depth):10 cm
according to the question
45 cm×25cm ×10cm
11250 cubic cm
Based on the given condition above for the dimensions of the cover, the length is 12 inches and the new width is 9 inches. Perimeter is twice the sum of the dimensions,
P = 2 x (L + W)
Substituting the known dimensions,
P = 2 x (12 in + 9 in) = 42 in
Therefore, the perimeter of the cover is <em>42 inches</em>.
There are 4 sides so add 4 sides
3x-4+3x-4+2x+3+2x+3=78
Combine like terms
10x-2=78
Add 2 to each side of the equation
10x=80
Divide by 10
X=8
Enter x into equation
3(8)-4=20
2(8)+3=19
Multiply by 2
20 x 2= 40
19 x 2 = 38
40 +38 =78
Side 1- 20
Side 2- 19
Side 3- 20
Side 4- 19
Answer:
1) 60 m³ 2)182 m³ 3) 456 in.³
Step-by-step explanation:
1) 3 x 6 x 3 = 54
1 x 2 x 3 = 6
54 + 6 = 60
2) 3 x 6 x 7 = 126
2 x 7 x 4 = 56
126 + 56 = 182
3) 3 x 4 x 2 = 24
9 x 4 x 12 = 432
24 + 432 = 456
