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VashaNatasha [74]
3 years ago
10

Business A c Charges $50 for a service call, plus an additional $36 per hour for labor. Business a charge is $35 for a service c

all,Plus an additional $39per hour for labor. Let x represent the number of Hours of labor and Y represent the total charge. Write a system of equations you could solve to find the length of a service call for which both businesses charge the same amount.
Mathematics
1 answer:
Irina-Kira [14]3 years ago
4 0

Answer:

The system of equation to find the length of service call is \left \{ {{y=50 +36x} \atop {y =35 +39x}} \right..

The length of  service call for which both businesses charge the same amount is 5 hours.

Step-by-step explanation:

Given:

Let the 'x' represents number of hours of labor.

Also Let the 'y' represent the Total charge.

For Business A:

Fixed charge = $50

Charge of labor for each hour = $36

Amount of total charge is the sum of fixed charge and charge of labor for each hour multiplied number of hours of labor

framing in equation form, we get;

y=50 +36x \ \ \ \ equation \ 1

For Business B:

Fixed charge = $35

Charge of labor for each hour = $39

Amount of total charge is the sum of fixed charge and charge of labor for each hour multiplied number of hours of labor

framing in equation form, we get;

y =35 +39x \ \ \ \ equation \ 2

Hence The system of equation to find the length of service call is \left \{ {{y=50 +36x} \atop {y =35 +39x}} \right..

Now to find the length of  service call for which both businesses charge the same amount, we will make both the equation equal we get;

50+36x=35+39x

Now we solve the equation,

Combining the like terms, we get;

50-35=39x-36x\\\\15=3x

Dividing both side by '3' using division property, we get;

\frac{15}{3}=\frac{3x}{3}\\\\5=x

Hence The length of  service call for which both businesses charge the same amount is 5 hours.

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