first combine like terms so 2n + 7n which is 9n
so 9n + 7 = 13 + 3n + 8n
then combine on other side so 9n + 7 = 13 + 11n
then subtract 7 to 13 so 6
sp 9n + 6 = 11n
then subtract 9 to the other side so 2n
6 = 2n then divide all by 2
n= 3
R/9 = -21
Multiply by 9
r = -189
Answer:
c.) 36cm
Step-by-step explanation:
:))
Answer:
Step-by-step explanation:
Given
monthly
Required
Write an expression to determine the number of months
The total can be expressed using:
Substitute value for each term
Hence:
Option F answers the question
Answer:
C, f(x) = 3(2)^x
Step-by-step explanation:
Since the y-intercept is 3, the function will have 3 multiplying by some number to the power of x.
As x increases by 1, we notice that y multiplies by 2 every time.
This leads us to believe that the equation is 3 * 2^x
