Answer:
0 =n
Step-by-step explanation:
2 − 10n = 2 + 4n
Add 10n to each side
2 − 10n+10n = 2 + 4n+ 10n
2 = 2 + 16n
Subtract 2 from each side
2-2 = 2+16n-2
0 = 16n
Divide each side by 16
0/16 = 16n/16
0 =n
Answer:
7.716 x 10^-3
Step-by-step explanation:
Using indicies,
0.3858 x 0.02
(3.858 x 10^-1) x (2.0 x 10^-2)
3.858 x 2.0 x (10^-1 + -2)
7.716 x 10^-3
26 , 8-6=2 so you do 24+6
D is answer...........mmm
Answer:
Number of quarters → 15
Number of dimes → 2
Step-by-step explanation:
Let the number of dimes I have = y
And number of quarters = x
Since, I have amount in my pocket = $2
Therefore, 0.10y + 0.25x = 2
100(0.10y + 0.25x) = 100×2
25x + 10y = 200
5x + 2y = 40
2y = -5x + 40
y = -2.5x + 20 ---------(1)
Total number of coins in my pocket = 17
x + y = 17
y = -x + 17 ---------(2)
By using a graphing calculator we can graph these two lines (As attached)
Solution of the given system of equations will be the point of intersection of these lines.
Solution → (2, 15)
Number of quarters → 15
Number of dimes → 2