Answer:
The slope is
. The slope means that the amount of money in the account is decreasing at a rate of $
every week.
Step-by-step explanation:
Given coordinates are
We need to find the slope of the graph, and explain what does slope means for this graph.
The formula for computing slope
is
Where
and
are the point on the line.
Let us plug points
in the equation
Here, the negative sign of slope
represents that the value of the function (budget) is decreasing, with an increase in time (week).
The slope is
. The slope means that the amount of money in the account is decreasing at a rate of $
every week.
Answer: See below
Explanation:
6a + 11 = 2a + 83
6a - 2a = 83 - 11
4a = 72
a = 72/4
a = 18
Answer:
180 coins
Explanation:
N = number of nickels (no nickels spent)
D = number of dimes initially saved
D' = number of dimes left after spending
1) N = D + 43
2) D' = D - 17
3) N = 2*D' = 2*(D - 17)
Set equations 1) and 3) equal to each other and solve for D:
D + 43 = 2*(D - 17)
D + 43 = 2*D - 34
D = 43 + 34 = 77
N = D + 43 = 77 + 43 = 120 nickels left
D' = D - 17 = 77 - 17 = 60 dimes left
Total coins left = 120 + 60 = 180 coins (I hope this is not too confusing for you)
True,
Good luck! I hope I helped!