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borishaifa [10]
4 years ago
5

A karate studio charges $35 for the first course and $22.50 for each course after that, even if the student leaves the course ea

rly. Cena paid $170 for her son to take courses. How many courses did he take? 6 courses 7 courses 8 courses 10 courses
Mathematics
1 answer:
nalin [4]4 years ago
6 0
Hello there!

Remember that we already have one course for $35, and $22.50 for each course after that. Our total is $170.
Our equation is:
22.50x + 35 = 170

First, subtract 35 from both sides.
22.50x = 135

Divide both sides by 22.50.

x = 6
Remember to add the additional class, so x is actually 7.

Your answer is 7 courses.

I hope this helps!

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uysha [10]

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Hope this helped!

Nate

7 0
4 years ago
Y = –3x + 5 y = mx + b Which values of m and b will create a system of linear equations with no solution? m = –3 and b = –3 m =
beks73 [17]

Answer:

(A) m = –3 and b = –3

Step-by-step explanation:

If m=–3 and b=–3

The system of linear equations:

y = –3x + 5

y = mx + b

Becomes

y = –3x + 5 ......(i)

y = –3x – 3   .......(ii)

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4 0
3 years ago
Read 2 more answers
Find the measure of angle x in the figure.
Ghella [55]

Answer:

x = 125°

Step-by-step explanation:

There are 7 angles in this shape. The sum of the angles in a shape like this is calculated using a formula.

Total of angles

= (n - 2)•180°

Put in 7, because there are 7 angles.

= (7 - 2)•180°

= 5•180°

= 900°

So the total of the angles should be 900°. We know all of the angles except one.

900° = 123°+129°+128°+128°+132°+135°+ x

900° = 775° + x

Subtract 775.

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The missing angle is 125°.

4 0
2 years ago
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sergij07 [2.7K]

Answer:

A)    A(t) = 5000(1 + 0.012)t

B)    A(t) = 106260

Step-by-step explanation:

A) 5000 is the initial amount, 1 + 0.012 is the interest rate, and t represents the years.

B) When we plug 21 into the equation,  we get 106260.

I hope this helps!

7 0
3 years ago
Data is 48 50 48 40 42 42 47 48 48 41
stepan [7]

Answer:

median is 45.5

range is 10

IQR is 6

Step-by-step explanation:

type in mean median mode calculator in search bar and click on the calculator soup one

7 0
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