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Anna11 [10]
2 years ago
13

I need help and the teacher didn’t explain this to us but how do I solve function notations?

Mathematics
1 answer:
Virty [35]2 years ago
6 0

Answer:

Step-by-step explanation:

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Solve:<br> I kept trying but I can’t do it <br> Thank you a lot for you help
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Read 2 more answers
Two cars leave at the same time from points A and B, the distance between them is 280 km. If the cars meet each other, they’ll m
kykrilka [37]
Set up the following equations:

2x + 2y = 280

14x - 14y = 280

x represents car A's speed, and y represents car B's speed.

We'll use elimination to solve this system of equations. Multiply the first equation by 7:

(2x + 2y = 280) * 7 = 14x + 14y = 1960

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Combine both equations:

28x = 2240

Divide both sides by 28 to get x by itself:

x = 80

The speed of car A is 80 mph.

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The speed of car B is 60 mph.

7 0
4 years ago
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