18x = 900
How many students went on the trip?
Answer:
50
Step-by-step explanation:
18x=900
divide 900 by 18 and you get x which equals 50
you can check your answer by multiplying 18x50=900
A typical stone on the lowest level of the great pyramid in Egypt was a rectangular prism 5 feet long by 5 feet 5 feet high by 6 feet deep and weighted 15 tons. What was the volume of the average stone? How much did one cubic foot of this stone weight?
The answer is cos70
the angles add up to 180, so 180 - 90 - 20 = 70 degrees.