Answer:
4.41
Step-by-step explanation:
Use the definition of square:
Hence,
Multiply 2.1 by 2.1 using column multiplication (or using calculator):
so
Answer:
What is the question?
Step-by-step explanation:
Real positive numbers are decimal numbers, not limited to integers, which are above zero.
Answer:
81
Step-by-step explanation:
Set up a proportion to find how many total students there are [notice how females are on top and totals are on the bottom of the ratios]
= so cross multiply 4x = 396(9) so x = 891, if there are a total of 891 students and you need 1 teacher per 11 students then take 891/11 so you need 81 teachers.
You could set up another proportion 1/11 = x/891
4:30PM
First divide 480 by 60 then you get the answer of 8 that is the the amount if hours extra to 8:00 you need to add on then the train stops for half an hour so you have to add that on to get
4:30pm