Width = 5x
length = 7x
Perimeter = 10x + 14x = 24x = 96cm
x = 96/24 = 4cm
width = 5x = 20cm
length = 7x = 28cm
Area = (20cm x 28cm) = 560 cm²
Find the area of one side, by using the area of a triangle formula 1/2 x height x base.
The base is given as 4 and the height is given as 6.
Area of one side = 1/2 x 4 x 6 = 12 square units.
There are 6 sides, so multiply the area of one side by 6:
12 x 6 = 72 square units.
Divide total milk by amount per glass.
When dividing by a fraction flip the fraction over and multiply:
7/8 x 16/1 = (7 x16) / ( 8 x1) = 112/8 = 14
Answer: 14 glasses
5(x-4x+5)=3-8x
5x-20x+25=3-8x
-15x+25=3-8x
-7x+25=3
-7x=-22
x= 22/7
