![subject](/tpl/images/cats/mat.png)
Mathematics, 14.10.2019 06:30 sunny3799
Karina uses the system of equations below to compare the monthly utility costs in july and december for electricity, x, and natural gas, y.
750x + 17y = 141.61
300x + 30y = 75.90
karina solves the system using linear combination and arrives at the equation 116y = 96.28. she then solves this equation for y. which statement explains karina’s solution?
a. the cost of electricity is $0.17 per unit.
b. the cost of natural gas is $0.20 per unit.
c. the cost of electricity is $0.72 per unit.
d. the cost of natural gas is $0.83 per unit.
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Other questions on the subject: Mathematics
![image](/tpl/images/cats/mat.png)
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 22:10, Jenifermorales101
Write the function for the graph. (1.8) (0,4)
Answers: 3
![image](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 00:00, jdaballer3009
Heather is riding a quadratic function that represents a parabola that touches but does not cross the x-axis at x=-6
Answers: 1
![image](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 01:00, mimithurmond03
Find the unit rate. enter your answer as a mixed number. a fertilizer covers 2/3 square foot in 1/2 hour.
Answers: 2
You know the right answer?
Karina uses the system of equations below to compare the monthly utility costs in july and december...
Questions in other subjects:
![Konu](/tpl/images/cats/istoriya.png)
![Konu](/tpl/images/cats/istoriya.png)
History, 25.08.2019 10:50
![Konu](/tpl/images/cats/istoriya.png)
![Konu](/tpl/images/cats/es.png)
Spanish, 25.08.2019 10:50
![Konu](/tpl/images/cats/istoriya.png)
History, 25.08.2019 10:50
![Konu](/tpl/images/cats/istoriya.png)
History, 25.08.2019 10:50
![Konu](/tpl/images/cats/health.png)
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/ekonomika.png)
![Konu](/tpl/images/cats/istoriya.png)
History, 25.08.2019 10:50