Apencil at a stationery store costs $1, and a pen costs $1.50. stefan spent $7 at the store. he bought a total of 6 items. which system of equations can be used to find the number of pencils (x) and pens (y) he bought?
a. x + 1.5y = 7 x + y = 6
b.1.5x + y = 7 x = 6y
c. x + 2y = 7 6x = 1.5y
d.2x + y = 7 6x = 1.5y
the system of equations shown below is graphed on a coordinate grid:
3y + x = 4
2y − x = 6
which statement is true about the coordinates of the point that is the solution to the system of equations? it is (−2, 2) and lies on both lines.
it is (−5, 3) and lies on both lines.
it is (−5, 3) and does not lie on either line.
it is (−2, 2) and does not lie on either line.