Question

stephen buys x pencils and y notebook for his students each pencil costs $0.45 and each notebook costs $1.25 he buys a total of 210 pencils and notebooks for $142.50 which system of equation represent this situation A x+y= 0.45+1.25y=142.50 B x+y=142.50 0.45x+1.25y=210 C x+y =210 1.25x+0.45y=142.50 D x+y=142.50 1.25x+0.45y=210

Answer 1

$x + y = 210 \\ 1.25x + 0.45y = 142.50$

Answer is C.

Hope this helps. - M

Answer 2

QUANTITY EQUATION: add up total number of pencils (x) and notebooks (y) to equal 210 total items.

x + y= 210


COST EQUATION: (multiply the cost per pencil by the number of pencils) plus (multiply the cost per notebook by the number of notebooks) to equal a total of $142.50.

$0.45x + $1.25y= $142.50


ANSWER: I believe it is A, but you may have left a couple things out when typing the question. The answer has to have: x+y=210 and $0.45x+$1.25y=$142.50 (it is NOT B, C or D).

Hope this helps! :)