Answer:
Step-by-step explanation:
Hello,
<u>The mean of five numbers is 8</u> so we can write
<u>When another number is added the mean is 7</u>, let s note x the another number we can write
From the first equation we can say
So the second equation becomes
The solution is then 2
Hope this helps
2000(3/5)
6000/5
1200
So 1200 doctors used brand X
Answer
22
Step-by-step explanation:
82-2=80-60=20+2=22
A would be the answer because Brain might not have been paying attention to the miles so he adds a to the 5 miles he walked the next week.
Answer:
x=2
Step-by-step explanation:
3x – 5 = 1
3x-5=1
Add 5 to each side
3x-5+5 = 1+5
3x = 6
Divide by 3
3x/3 = 6/3
x = 2
