Eastern Ice Company sells 10 pound blocks of ice in the shape shown. The volume of the block of ice is 375 Inches cubed. What is the height of the block of ice? A block of ice has a length of 10 inches and a width of 7.5 inches.
Use the formula Height = StartFraction Volume Over length times width EndFraction, where l is the length of the prism, w is the width, V is the volume, and h is the height.
2.5 inches
4 inches
5 inches
7.5 inches

:Eastern Ice Company sells 10 pound blocks of ice in the shape shown. The volume of the block of ice is 375 Inches cubed. What is the height of the block of ice? A block of ice has a length of 10 inches and a width of 7.5 inches. Use the formula Height = StartFraction Volume Over length times width EndFraction, where l is the length of the prism, w is the width, V is the volume, and h is the height. 2.5 inches 4 inches 5 inches 7.5 inches

12 inches

hello from mrbilldoesmath!

answer:

a(n) - a(n-1) -3

discussion:

this ones a bit interesting. given a(n) = 5 - 3n consider this:

a(n-1) = 5 - 3(n-1)

          = (5 - 3n) + 3             => but a(n) = 5 - 3n, the first term

          = a(n)   + 3                 => subtract 3 from both sides

a(n-1) -3 = a(n)  

or

a(n) - a(n-1) -3

you,

mrb