Answer:
If 20 is 5% multiplying it by 20 would give us 100%, so 20*20=400. There are 400 sixth-grade students in total.
The length is 4.22 inches. The first time you press the button, the copy becomes 1-12%=88% of its original length. When you press it again, it becomes 88%*88% of its original length. By the same reasoning, if you press it for 5 times, the final length is 8*(88%)^5=4.22 inches rounded to the nearest hundredth.
Step-by-step explanation:
Step 1: Write down the percent divided by 100 like this: percent 100.
Step 2: If the percent is not a whole number, then multiply both top and bottom by 10 for every number after the decimal point. ...
Step 3: Simplify (or reduce) the fraction<u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u>
The plane's airspeed is 140:)
Answer:
Approximately 120.31 people per square mile
Step-by-step explanation:
1) The population density can be found by dividing the whole population over the area.
2) Since the NH map is modeled like this triangle, let's firstly calculate its area.
3) Based upon the original picture, and tracing it on we can easily see that the y coordinate is little bit over 200, precisely 220. Each mark on the original y-axis count as 20 miles. That'll give us the height.
The base of the triangle is 100 miles for F(100,0). Plugging that information on the formula:
4) The Population density: