Answer:
80% are 15 years old
Step-by-step explanation:
To find the percent , we need to know how many out of 100
20/25
Multiply the top and bottom by 4
20*4
-----------
25*4
80/100
This is 80%
80% are 15 years old
Well if 10/100 are left handed, that means that 10% of all the kids are left handed and 90% of the kids are right handed. so the probability that 80% of the students selected are right-handed, is likely.
For all of them just use the Pythagorean theorem which is a squared plus b squared equals c squared where c is the hypotenuse (length of the side opposite the right angle) and a and b are legs. Just plug it in and solve for the missing length. For example, 1 would be (12) squared plus (5) squared equals c squared
Simplify to get 144 plus 25=c squared
169 equals c squared
Find the square root of both sides
c=13
Answer:Its D, just took the test.
Step-by-step explanation:
Answer:
23.4x10+913
Step-by-step explanation: