5(x + 8)
7x - 49
7(x - 7)
18x + 9
9(2x + 1)
15x - 10
5(3x - 2)
for number one all you have to do is factor 5 out of 5x + 40
for number 2 factor 7 out of 7x - 49
for number three factor 9 out of 18x + 9
for number four factor 5 out of 15x - 10
answer: all of the odd numbers were opened
the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.
from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.
answer: a. 13/44
step-by-step explanation: judging by the information given to us, we are looking for experimental probability. we can see that 13 males have chosen chocolate ice cream. there are 44 ice creams in total (remember that the total is always the denominator). so our answer is 13/44.
If f(x) = ., what is f(a + 2)?