Mathematics, 21.11.2019 05:31 Ailyt2543
One month, a homeowner used 150 units of gas and 520 units of electric for a total cost of $84.20. the next month, 210 units of gas and 405 units of electric were used for a total cost of $82.35. find the cost per unit of gas and electric using substitution.
Answers: 1
Mathematics, 21.06.2019 17:30
Two customers went to a post office. first customer paid $12 for 14 and 5 envelopes the second paid 24.80 for 10 postcards and 15 envelopes. what is cost of each envelope?
Answers: 1
Mathematics, 21.06.2019 18:00
14. (05.02 lc) what is the value of y in the solution to the following system of equations? (5 points) 2x + y = −4 5x + 3y = −6
Answers: 1
One month, a homeowner used 150 units of gas and 520 units of electric for a total cost of $84.20. t...
History, 22.05.2021 03:00
Health, 22.05.2021 03:00
Mathematics, 22.05.2021 03:00
Mathematics, 22.05.2021 03:00
English, 22.05.2021 03:00
History, 22.05.2021 03:00
Mathematics, 22.05.2021 03:00
English, 22.05.2021 03:00
History, 22.05.2021 03:00
Health, 22.05.2021 03:00