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Simora [160]
3 years ago
14

After paying $3 for a sandwich, Trevor has $9.How much money did he have before buying the sandwich?

Mathematics
1 answer:
Mazyrski [523]3 years ago
5 0

Answer:

$12

Step-by-step explanation:

add 3 to 9 and get 12

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70 - 5x = number of people waiting in line to buy tickets x minutes after a ticket booth opened is given by 70 - 5x. What does t
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Answer:

The 70 represents the number of people waiting to by tickets at the exactly moment when the ticket booth is opened.

Step-by-step explanation:

The 70 represents the number of people waiting to by tickets at the exactly moment when the ticket booth is opened.

You can see this by setting the x value to 0, it is, in the precise moment when the booth opened (as x cant be negative, because there is no negative time, you could also think of 70 as the number of people waiting before the booth opens).

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Simplify the expression to a + bi form:<br> (9+7i)(6 + i)
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