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HACTEHA [7]
3 years ago
6

1.

Mathematics
1 answer:
Genrish500 [490]3 years ago
6 0

Answer:

1.  (5n^2 x4^n+2)/ 6

2. y=1 y=2

Step-by-step explanation:

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Brianna buys a doll for 11.58 and some lotion for 3.14 she pays with a 20 dollar bill how much change should she get to the near
sertanlavr [38]

Answer:

5.30

Step-by-step explanation:

11.58 + 3.14 = 14.72

20 - 14.72 = 5.28

nearest dime is 5.30

6 0
3 years ago
Louise has only 5 cent, 10 cent, and 20 cent coins in her purse. She has 30 coins in total, and she has two more 10 cent coins t
Hoochie [10]
Let x =  number of 5 cent coins.
Then there are (x+2) 10 cent coins.
Let y = 20 cent coins.
Total coins: x+(x+2)+y = 30
2x+y=28       
y = 28-2x                             (1)
Total value: 0.05x + 0.1(x+2) + 0.2y = 3.80
0.15x + 0.2y + 0.2 = 3.80
0.15x + 0.2y = 3.60             (2)
Substitute (1) into (2).
0.15x + 0.2(28-2x) = 3.60
-0.25x + 5.60 = 3.60
2.00 = 0.25x
8 = x

From (1), obtain y = 28 - 2(8) = 12
Answer: (x+2) = 8+2 = 10 
Louise has 10 10-cent coins
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3 years ago
Simplify: 5(m−3)+(m−7)
adoni [48]

Answer:

6m- 22

Step-by-step explanation:

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3 years ago
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A telemarketing company had a loss of $2113.15 in July, a loss of $597.11 in August, and a profit of
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