Answer:Number of messages sent everyday =70 messages
Step-by-step explanation:
Total Number of messages sent in a week = 490
since she sends equal amount of messages everyday, we have that
1 week = 7 days
Number of messages sent everyday = 490/ 7 = 70 messages
Answer:
15
Step-by-step explanation:
(18+22+17+x)/4=18
18+22+17+x=18×4
57+x=72
x=72-57
x=15
Find like terms and group them
3n and 5n are same and 4n^2 and 4n^2 are same
but 3mn and 5n are not and 3n and 2n^3 are not
group like terms
(-2m^2)+(-2mn+1mn)+(8)+(-10m)+(10n-5n)+(2n^2)
add like terms
(-2m^2)+(-mn)+(8)+(-10m)+(5n)+(2n^2)
-2m^2+2n^2-10m+5n-mn+8 is simplest form
Answer:
a values of r and a that the answer