Here is the answer for the 1st one. I have a picture of the second one but I’m not sure if I can post the picture of it
Answer:
c 18
Step-by-step explanation:
Idid thsi in Kahn academy and got it correctly
For this case what we have to take into account is the following variable:
x = represent the unknown number
We now write the following inequality:
"four times the sum of number and 15 is at least 20"
4 (x + 15)> = 20
We clear the value of x:
(x + 15)> = 20/4
(x + 15)> = 5
x> = 5 - 15
x> = - 10
The solution set is:
[-10, inf)
Answer:
all possible values for X are:
[-10, inf)
Answer:
15
Step-by-step explanation:
