Answer:
the missing number is 6
Step-by-step explanation:
To find the mean, add up all the numbers and divide by the number of numbers
( 2+3+x+5) /4 = 4
Combine like terms
(10+x)/4 =4
Multiply each side by 4
10+x = 16
Subtract 10 from each side
x = 6
Perimeter = Length+Length+Width+Width
OR
Perimeter = 2Length + 2Width
They will both get you the same answer.
Length = 14
Width = 8
P = 14 + 14 + 8 + 8 = 44 feet
Answer: D. 44 Feet
Answer:
3
Step-by-step explanation:
Answer:
£48
Step-by-step explanation:
Area of walls = area of four rectangular walls + area of two triangular shape at front and back
Area of a rectangular wall = l *w = 8 * 4 = 32 m²
Area of 4 rectangular walls = 4 *32 = 128 m²
Triangle:
Base = 6m
height = h = 7 - 4 = 3 m
Area of triangle = (1/2)*b*h

Area of 2 triangles = 2*9 = 18 m²
Area of four walls = 128 + 18 = 146 m²
Number of paint tins required = 146 ÷ 25 = 5.84 = 6
6 tins are required.
Cost of 6 tins = 8 * 6 = £48