Mathematics, 04.12.2020 23:30 msroxcie
What number must you multiply the second equation by so that the sum of the x-coefficients is zero?
7x−y=55
x+3y=33
(1 point)
7
−7
−1/3
1/3
Answers: 1
Another question on Mathematics
Mathematics, 21.06.2019 15:30
In δabc, if the length of side b is 3 centimeters and the measures of ∠b and ∠c are 45° and 60°, respectively, what is the length of side c to two decimal places?
Answers: 1
Mathematics, 21.06.2019 15:30
Mary used 1/7 of a spool of ribbon to complete 4 projects. she used the same amount of ribbon on each project. how much ribbon did she use on each project?
Answers: 2
Mathematics, 21.06.2019 21:00
Emily is entering a bicycle race for charity. her mother pledges $0.90 for every 0.75 mile she bikes. if emily bikes 18 miles, how much will her mother donate?
Answers: 1
You know the right answer?
What number must you multiply the second equation by so that the sum of the x-coefficients is zero?...
Questions
History, 27.07.2020 23:01
Social Studies, 27.07.2020 23:01
Mathematics, 27.07.2020 23:01
Mathematics, 27.07.2020 23:01
Mathematics, 27.07.2020 23:01
History, 27.07.2020 23:01
Mathematics, 27.07.2020 23:01
Mathematics, 27.07.2020 23:01
