MM
Mashaal Masha
Apr 12, 2024
An elementary school teacher is ordering $x$ workbooks and $y$ sets of flashcards for a math class. The teacher must order at least 20 items, but the total cost of the order must not be over $\$80$. If the workbooks cost $\$3$ each and the flashcards cost $\$4$ per set, which of the following systems of inequalities models this situation?
Difficulty: Easy
A:
$x+y \geq 20$
$3x+4y \leq 80$
B:
$x+y \geq 20$
$3x+4y \geq 80$
C:
$3x+4y \leq 20$
$x+y \geq 80$
D:
$x+y \leq 20$
$3x+4y \geq 80$
ID: 661974a45f7d3515958acda2