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Is there an easy way to work out 30 to the power of 6 without a calculator?
Logarithms, for which you would need tables.
Can 130 students be seated at tables of 5?
Yes, 130 students can be seated at tables of 5. To calculate the number of tables needed, you would divide the total number of students by the number of students per table. In this case, 130 students divided by 5 students per table equals 26 tables. Each table would have 5 students seated at it.
How many 36 passengers buses would it take to carry 114 people?
You would need four buses. Three would be full and there would be six people on the last bus.
What are logarithm tables used for?
Logarithm tables help you work with logarithms without using a calculator. Calculating a logarithm can be a long process. A table eliminates the need to perform extra math. If you need a specific logarithm, you simply look it up. The calculator was invented in the 1970's. Before that, people used slide rules or tables of logarithms. Using the tables of logarithms, you could perform multiplication, division, find roots or powers - and do all of that fairly easily.
How many eggs would you need to make omelets for 6 people if you use 6 eggs to make omelets for 4 people?
9 eggs
