To find the height of a giant ice cream cone outside of an ice cream parlor, Jayda places a mirror on the ground 320 inches from the base of the cone. Then Jayda stepped back 28 inches so that she could see the top of the ice cream cone in the mirror. Jayda’s eyes were approximately 62 inches above the ground. What is the height of the ice cream cone? Round to the nearest whole number. (no decimal)
Answer: It rounds to <u>28 km</u>
Explanation:
The units or ones digit is "7". The next digit over (9) is five or larger. This means we bump the 27 up to 28. Everything after the 7 is ignored.
So we could have something like 27.999871212512 and we still follow the same idea of focusing on the 27, bumping it up to 28, and everything else gets ignored.
The reason for this is because 27.9 is much closer to 28 than it is to 27. Draw out a number line to help see this. Split the region from 27 to 28 into 10 equal pieces. The 9th little piece represents 27 & 9/10 aka 27.9
Refer to the number line diagram below.
It would be 12.2 because 7+5.2 is 12.2
29,029 is the answer hope I helped! :)
Make an equation:
x= 16% x 50
x= 16 50
---- x ---- Cross Multiply
100 1
x= 16
------ = 8