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Amiraneli [1.4K]
3 years ago
7

Jorge’s monthly bill from his Internet service provider was $25. The service provider charges a base rate of $15 per month plus

$1 for each hour that the service is used. Find the number of hours that Jorge was charged for that month. a. 25 hours b. 20 hours c. 10 hours d. 15 hours
Mathematics
2 answers:
Hatshy [7]3 years ago
4 0

Answer:

Jorge was charged for 10 hours that month

Step-by-step explanation:

  Given : Jorge’s monthly bill from his Internet service provider was $25.

Also given :  The service provider charges a base rate of $15 per month plus $1 for each hour that the service is used

We have to find the number of hours that Jorge was charged for that month.

Let the number of hour be x,

Total bill =  base rate + 1 (number of hours used)

Total bill =  base rate + 1(x)

Substitute the values, we get,

⇒ 25 = 15 + 1 (x)

Solving we get,

⇒ 25 - 15 = x

10 = x

Thus, Jorge was charged for 10 hours that month


Vika [28.1K]3 years ago
3 0

Answer:

Option C is correct!

Step-by-step explanation:

Let x be the number of hours used by Jorge.

for 1 hour the cost = $1

for x hours the cost will be = 1(x ) = x

Base rate = $15

so total monthly payment = Base rate + hour payment

                                            = 15 +x

 total monthly payment = 25

therefore

            15+x  = 25

                x = 10

Jorge was charged for 10 hours in that month.


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Step-by-step explanation:

Nice summary problem.

<AEC

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<EAD and <ECD

Both of these are tangents to a circle. Tangents meet radii at 90 degree angles.

<EAD = <ECD = 90 degrees

<ABC

<ABC is 1/2 the central angle. The Central angle is <AEC

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<ADC

There are 2 ways of doing this. You should know both of them.

<em><u>One</u></em>

All quadrilaterals = 360 degrees. You know three of the angles. You should be able to find ADC

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  • <ADC = 360 - 296.5                    Subtract 238.25 from both sides
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<em><u>Method Two</u></em>

<ADC = 1/2 (major Arc - Minor Arc)  This formula is fundamental to circle / tangent properties. The Major arc is the larger of the two parts of the circumference of a circle. The Minor arc is the smaller.

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