Answer:
2 nickels and 21 dimes
Step-by-step explanation:
0.05N + 0.1D = 2.2
N + D = 23
Let's use the substitution method. Solve the second equation for N.
N = 23 - D
Now where you see N in the first equation substitute N with 23 - D.
0.05(23 - D) + 0.1D = 2.2
1.15 - 0.05D + 0.1D = 2.2
0.05D = 1.05
D = 1.05/0.05
D = 21
Now substitute 21 for D in the second original equation and solve for N.
N + 21 = 23
N = 2
Answer: 2 nickels and 21 dimes
S = 2100 + 40N Think of the graph as your typical (X,Y) graph but with the axis being (N,S) instead.
The length written in scientific notation is 85 x 10^-6
Left to right. Whatever comes first (multiplication or division) you do. This is all part of the PEMDAS/Order of operations.
Hopefully I solved your problem! :)
Answer: 3/2
Step-by-step explanation:
To find the slope, you want to take the two points and plug it into the formula 
. That will find the slope. The points are (-5,-4) and (-1,2).
Now, we know that the slope is 
.
