Mathematics, 09.12.2020 19:10 970032036

Find the value of a such that the system of equations 15x+12y=19
20x+at=-18
does not have a solution.

Answers: 1

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 13:30, pk4mk

Evaluate 4 a for a = 5 2/3 . express your answer in simplest form.

Answers: 1

continue

Mathematics, 21.06.2019 15:00, vnzgirl

1. there are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. the first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. the line plot shows the differences after 10 rerandomizations. determine whether the difference in the means of the two groups is significant based on the line plot. explain your answer.

Answers: 1

continue

Mathematics, 21.06.2019 16:30, inucornspineapple

Arandom sample of 150 high school students were asked whether they have a job. the results are shown in the table. have a job do not have a job male 48 35 female 41 26 select a ord or phrase from the drop-down menus to correctly complete the statements describing the association.

Answers: 1

continue

Mathematics, 21.06.2019 18:00, OlamideO3

The base of a triangle exceeds the height by 7 centimeters. if the area is 400 square centimeters, find the length of the base and the height of the triangle.

Answers: 1

continue

You know the right answer?

Find the value of a such that the system of equations 15x+12y=19
20x+at=-18
does not ha...