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Karolina [17]
3 years ago
9

Simplify for a = 3, b = -4 and c = -1. 9−a(c+5)

Mathematics
2 answers:
sesenic [268]3 years ago
8 0
9-3(-1+5)

9+3-15

9+3=12-15=-3
Otrada [13]3 years ago
5 0
9 - a (c + 5)
9 - 3 * 4
9 - 12
solution is -3
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Read 2 more answers
8) Write an absolute value equation that has 5 and 15 as its solutions?
marissa [1.9K]
(I'm going to use brackets as my absolute value bars lol)
 [5 x -3]
[-15]
=15
7 0
3 years ago
Please help with question
Step2247 [10]
To solve this problem you must apply the proccedure below:

 1. Let's call:

 x: hot dogs.
 y: hamburguers.

 2. Then, you must make a system of equations, as below:

 5x+4y=12.25  (i)
 4x+5y=12.50  (ii)

 3. Now, you can solve the system of equation as below:

 5x+4y=12.25
 x=(12.25-4y)/5

 4x+5y=12.50
 4((12.25-4y)/5)+5y=12.50
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 4x+5y=12.50
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 x=1.25

 4. Therefore, the answer is:

 The cost of one hot dog is $1.25 and the cost of one hamburguer is $1.50
 
8 0
3 years ago
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