Can you put a picture of the full question please!
(238+2x)/5≥80
238+2x≥80*5
238+2x≥400
2x≥400-238
2x≥162
x≥162/2
x≥81
Answer: x≥81
Answer:
94
Step-by-step explanation:
D is the only one that makes sense.
Hope this helps i guess haha
Answer: 5 + 5^2 + 5^3 + 5^4
Explanation:
1) First time, when Kris forwards the e-mail it reaches other 5 people.
2) Second time, each one of the 5 people forawer to other 5 people, meaning that the second time the e-mail has reached other 5^2 people.
3) Third time, each 5^2 people forwarded to other 5 people, so the email reaches other 5^3 people
4) Fourth time => 5^4 new people.
So, the total number (not including Kris) is 5 + 5^2 + 5^3 + 5^4.