Chapter 2: Q. 28E (page 93)
The Great Pyramid in Egypt was built around 2560 B.C. Over the years, it has lost 30 feet of height off its top and is now 451 feet tall. Find the original height of the Great Pyramid.
Original height of the Great pyramid is.
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In Exercises 1–3, evaluate the expression. Justify each of your steps.
Use the distributive property to write an equivalent variable expression.
Game Room You are building a game room adjacent to your living room. The widths of the two rooms must be the same. There are no restrictions on the game room’s length l.
a. Write an expression for the total area of both rooms by multiplying their common width by their combined length.
b. Write a second expression for the total area by finding the area of each room separately and then adding the two areas.
c. Show that the expressions from parts (a) and (b) are equivalent.
Use the distributive property to write an equivalent variable expression.
Evaluate the expression when.
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