Mathematics, 26.02.2021 06:50 babylear
Mr. Alvarado bought a total of 20 pounds of grass seed at the nursery for $168. He paid $9 per pound for Kentucky blue grass and $6 per pound for Tall Fescue. Which system of equations
can be used to find the amount X (in pounds) of Kentucky blue grass and the amounty (in pounds) of Tall Fescue Mr. Alvarado purchased?
X+ y = 168
9x + y = 20
Ox+y = 20
6x + 9y = 168
x+y = 20
9x + y = 168
Ox+y=168
6x + 9y = 20
Answers: 1
Another question on Mathematics
Mathematics, 21.06.2019 16:30
Rectangle pqrs has length a and width 4b. the x-axis bisects ps and qr what are the coordinates of the vertices
Answers: 2
Mathematics, 21.06.2019 19:50
Prove (a) cosh2(x) − sinh2(x) = 1 and (b) 1 − tanh 2(x) = sech 2(x). solution (a) cosh2(x) − sinh2(x) = ex + e−x 2 2 − 2 = e2x + 2 + e−2x 4 − = 4 = . (b) we start with the identity proved in part (a): cosh2(x) − sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 − sinh2(x) cosh2(x) = 1 or 1 − tanh 2(x) = .
Answers: 3
Mathematics, 21.06.2019 20:40
In each of the cases that follow, the magnitude of a vector is given along with the counterclockwise angle it makes with the +x axis. use trigonometry to find the x and y components of the vector. also, sketch each vector approximately to scale to see if your calculated answers seem reasonable. (a) 50.0 n at 60.0°, (b) 75 m/ s at 5π/ 6 rad, (c) 254 lb at 325°, (d) 69 km at 1.1π rad.
Answers: 3
You know the right answer?
Mr. Alvarado bought a total of 20 pounds of grass seed at the nursery for $168. He paid $9 per pound...
Questions
Mathematics, 30.07.2020 19:01
Law, 30.07.2020 19:01
Mathematics, 30.07.2020 19:01
Health, 30.07.2020 19:01
Mathematics, 30.07.2020 19:01
Biology, 30.07.2020 19:01
Biology, 30.07.2020 19:01
Mathematics, 30.07.2020 19:01
