Question

9. The Strawberry Festival is finally here! Mrs.

Answer 1

$\left \{ {{- \atop {2(21.5-2y)+2y=30}} \right.$Answer:

Step-by-step explanation:

a)

x= gourmet pretzels

y= boxes of strawberries

system will be:

$\left \{ {{2x+4y=43 \atop {2x+2y=30}} \right.$

b)

$\left \{ {{2x+4y=43 \atop {2x+2y=30}} \right.$ $\left \{ {{x=21.5-2y \atop {2x+2y=30}} \right.$$\left \{ {{- \atop {2(21.5-2y)+2y=30}} \right.$$\left \{ {{- \atop {43-4y+2y=30}} \right.$$\left \{ {{- \atop {-4y+2y=30-43}} \right.$$\left \{ {{- \atop {-2y=-13}} \right.$$\left \{ {{- \atop {y=\frac{13}{2} }} \right.$$\left \{ {x=21.5-2(6.5)}} \atop {y=6.5}} \right.$$\left \{ {{x=8.5} \atop {y=6.5}} \right.$

a box of strawberries is 6.5