There are multiple ways to do this.
The easiest is to just continuously subtract 7 from 65 the numbers of times needed.
But most math teachers will have you use the equation ar^n-1 where a= the first term (65), r=ratio (-7), and n=the term you need (second, fifth, and ninth).
So to solve you just plug your values in as so
AR^n-1
(65)(-7)^2-1(65)(-7)^5-1
(65)(-7)^9-1
The answer is a(n) = 6n - 2
Answer:
Step-by-step explanation:
if solving for y
solve for y by simplifying both sides of equation, then isolating the variable.
y=-3w+10+W
if solving for W
W=3w-10+y
if solving for w
w=W/3 - y/3 + 10/3
Answer:
She earned 11 after completing 5 chores
Step-by-step explanation:
<em>We are shown a scatter plot and the equation of best fit line. The eqaution explains the general trend of the scatterplot. Using the equation we can find the money earned for 5 chores</em>
Amount of money earned, y = 2x + 1 ---(1)
Chores Completed, x = 5
put x = 5 in eq(1)
y = 2(5) + 1
y = 11
