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A karate studio charges $35 for the first course and $22. 50 for each course after that, even if the student leaves the course early. Cena paid $170 for her son to take courses. How many courses did he take? 6 courses 7 courses 8 courses 10 courses.

Sagot :

The Cena can take 7 courses

We have given that the karate charges $35 for the first course and $22.50 for each course after that. Our total is $170.

What is the condition we can write here?

[tex]22.50x + 35 = 170[/tex]

for solving this linear equation

First, subtract 35 from both sides.

[tex]22.50x = 135[/tex]

isolate x so divide both sides by 22.50.

[tex]x=\frac{135}{22.50}[/tex]

Therefore we get x = 6

Remember to add the additional class, so x is actually 7.

So,the Cena can take 7 courses.

To learn more about the linear equation visit:

https://brainly.com/question/1549055

droneguy58

Answer:

7 courses

Step-by-step explanation:

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