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Ostrovityanka [42]
3 years ago
12

-3x + 3y = 9 2x - 7y = -14

Mathematics
1 answer:
snow_tiger [21]3 years ago
7 0

Sorry for the wait,

Hope this helps and have a great day!!!!!

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Two parallel lines are crossed by a transversal. Horizontal and parallel lines b and c are cut by transversal a. At the intersec
pogonyaev

Answer:

x=22

Step-by-step explanation:

According to the Alternate Interior angles theorem, the bottom left angle and the upper right angle have the same measure. Because they were formed from a pair of parallel lines crossed by a transversal one.

So, algebraically:

5x+5=115\\ 5x+5-5=115-5\\ 5x=110\\ \frac{5x}{5}=\frac{115}{5}\\x=22

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3 years ago
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A phone company offers two packages of service. Package A is $35.00 per month with an additional charge of $0.15 per minute for
ella [17]

Answer: 200 minutes have to be used for the costs of both plans to be the same.

Step-by-step explanation:

Let x represent the number of minutes that have to be used for the costs of both plans to be the same.

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Package B is $45.00 per month with an additional charge of $0.10 per minute for long distance. This means that the cost of using package A for x minutes in a month would be

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35 + 0.15x = 45 + 0.1x

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3 years ago
The number of books (b) in a preschool classroom is proportional to the number of children (c) enrolled.
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The answer is c i believe
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2 years ago
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Hey! please help i’ll give brainliest
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Step-by-step explanation:

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If the formula is a+b-c then you need to substitute the letters with the numbers. For this equation the formula would be:
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