Answer:
3+5n=5(n+2)-7
- 3+7= 5n+10-5n
- 0 ( As 5n and 5n cancle )
Step-by-step explanation:
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Answer:
-2 + 4f
Step-by-step explanation:
6 - 8 + 6f - 2f
2(3 - 4 + 3f -f) [Distributive Property]
=> 2(-1 + 3f - f)
=> 2(-1 + 2f)
=> -2 + 4f
Answer:3456789
Step-by-step explanation:
Answer:
Y = 1/3x + 1
Step-by-step explanation:
m = y2-y1 / x2-x1
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There are 125 dimes and 250 nickels.
A dime is 0.1$ and a nickel is 0.05$. The total number of them should give 25$.
The number of nickels are twice the number of dimes. So lets call the number of dimes X, then the number of nickels should be 2X.
Putting it in a formula: 0.05(2X) + 0.1X = 25.
Then by solving we get:
0.1X + 0.1X = 25
0.2X = 25
X = 25/0.2 = 125