Two elementary algebra problems

[jangoom]

#1. How many classrooms would be necessary to hold 1,000,000 inflated balloons? (Assume one balloon is about 1 ft3 and a typical classroom is about 30 ft × 45 ft × 15 ft. Round your answer to the nearest number of classrooms.)

#2. Approximately how high would a stack of 1 million \$1 bills be? (Assume there are 233 new \$1 bills per inch. Round your answer to the nearest yard.

Its been years! I need an answer and how you got there please.. much appreciated.

 

[Greg]

I've re-titled this thread and moved it into the appropriate forum. Also, I've deleted another thread of yours as it duplicates a question found here. In future, please do not post duplicates, post in the appropriate forum and give your threads a descriptive title. Thanks! :)

Using the method we have used in your other thread, can you now attempt these questions?

 

[jangoom]

Well I'm still lost. Is it the same method? Can you show me again how you do it.. I need a learn it...

 

[soroban]

1. How many classrooms would be necessary to hold 1,000,000 inflated balloons?
Assume one balloon is about 1 ft³ and a typical classroom is about 30 ft x 45 ft x 15 ft.
Round your answer to the nearest number of classrooms.

A classroom holds: $$30 \times 45\times 15 \:=\:20,250 \text{ ft}^3$$

To hold a million balloons requires: $$\frac{1,000,000}{20.250} \:=\:49.3827...\;\approx\; 49\text{ classrooms.}$$

#2. Approximately how high would a stack of 1 million \$1 bills be?
Assume there are 233 new \$1 bills per inch. Round your answer to the nearest yard.

$$\frac{1,000,000}{233} \:=\:4291.8454... \text{ inches}$$

$$\text{Divide by 36; }\;119.2179... \; \approx\; 119\text{ yards}$$