subject
Mathematics, 27.01.2020 02:31 cjulius9437

3math problem show step by step


1. 5x+y=-12
5x-7y=4

2. -5x+4y=-3
-9x-y=-30

3, -9x+6y=27
-x+3y=10

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 18:00
What percent of the circle below is shaded?
Answers: 1
question
Mathematics, 21.06.2019 18:30
Write a polynomial function f of least degree that has rational coefficients, a leading coefficient of 1, and the given zeros. 3, 4+2i, 1+(sqrt)7 the answer is supposed to be: f(x)=x(^5)-13x(^4)+60x(^3)-82x(^2)-144x+360 what am i doing wrong?
Answers: 1
question
Mathematics, 21.06.2019 21:00
Julie buys 2kg of apples and 7kg of pears ? 12.70. the pears cost ? 1.30 per kilogram what is the price per kilogram of the apples? show your working out
Answers: 2
question
Mathematics, 22.06.2019 02:00
90.0% complete a b c d e confirm last week, your delivery runs took 7 hours 12 minutes on monday, 6 hours 46 minutes on wednesday, and 6 hours 53 minutes on friday. what was your average time for a delivery run?
Answers: 3
You know the right answer?
3math problem show step by step


1. 5x+y=-12
5x-7y=4

2. -5x+4...
Questions
question
Mathematics, 15.10.2019 14:30
question
Mathematics, 15.10.2019 14:30
question
Mathematics, 15.10.2019 14:30
question
Mathematics, 15.10.2019 14:30
Questions on the website: 13722367