Simplify, justify your steps using the communitive, associative and distributive properties when necessary 3a + 2b + 5a

8a+2b

Step-by-step explanation:

you can add 3a and 5a to get 8a but cant do anything with 2b so it stays 2b. therefore it becomes 8a+2b. hope this helps!! :)

8a + 2b

Step-by-step explanation:

Step 1.  Combine your like terms( Like terms are the numbers with the same variable)

3a + 2b + 5a

3a + 5a= 8a

Step 2. Bring down the other term which is 2b( Do not add  8a + 2b because they are not like terms)

8a + 2b

and your done :)

Remeber: like terms have the same variable.

Example: 2a + 4a

75 tickets have been sold so far.

step-by-step explanation:

in this question it is clearly mentioned that 45 children's tickets have been sold and this number is 60% of the total tickets sold.

now let's assume the total number of tickets sold be x.

then 60% of x = 45

⇒

⇒ x(.6) = 45

by dividing with .6 on both the sides of the equation

⇒ x = 75

therefore 75 tickets have been sold so far.