Answer:
Like terms are terms whose variables are the same.
We can only add them because if they does not have the same variable you do not actually know if the variables are equivalent and you will get the wrong answer.
Step-by-step explanation:
Ex: 4z,7z,108z,45z
Ex: 4w-2h+7a-2w
You can not add 4w and 7a because you do not know what the variables equal so you do not know the true number so add or subtract by.
Student 1 and 3.
Move the negative into the brackets,
positive becomes negative while two negatives make a positive.
There are 4 quarts in a gallon. So 8 gallons is the same as 32 quarts.
If he used all but 1 quart, that means he used 31 quarts.
Answer:
31 quarts
Hoped that helped
The answer that you have is most likely right, since the grouping did not change.
The volume of the large cylinder will be twice the volume of the small cylinder.
<u>Step-by-step explanation:</u>
Let the radius of the cylinder be 'r'
Let the height of the cylinder be'h'
Volume of the small cylinder=π r² h
Volume of the large cylinder= π r² (2h)
Volume of large cylinder/volume of small cylinder= 2/1
The large cylinder volume is twice the volume of the small cylinder.