Answer:
12
Step-by-step explanation:
This can be solved by working backwards.
7 is one more than half the number of invitations.
Subtract 1. 6 is half the number of invitations.
Double.
12 is the full number of invitations.
Algebra (if you must!):
x = number of invitations
x/2 + 1 = 7
Subtract 1.
x/2 = 6
Multiply by 2.
x = 12
Answer:
25 hours
Step-by-step explanation:
Interval notation
(-infinity sign, 1)
Set-builder notation
{x|x less than equal to 1}
Answer:
Step-by-step explanation:
5x + 2 < 47
Side note: put the line under the
