373-13=360
360 divided by three equal to 120
So 120 children chose basketball
Answer:
Step-by-step explanation:
All the reasons are correct apart from the 4th.
Step 4 involves <u>multiplication</u> of both sides by (2/3). Thee reason given is: "<u>Division</u> property of equality", which is wrong as division is not applicable.
Answer:
First one
Step-by-step explanation:
First choose because they are all multiply by 5
Let's say there were 3 questions with four answer choices each. That would mean there were 4*4*4 = 16*4 = 64 different ways to answer.
Extend this example out to 19 questions instead of 3. You'll get
4^19 = 4*4*4*...*4*4 = 274,877,906,944
The last value is one big number (not four numbers)
The large number is the answer
note: 4^19 means we have 19 copies of '4' being multiplied together. The three dots mean "continue the pattern". On your paper, you should somehow indicate to your teacher that there are 19 copies of '4' being multiplied.