Question

1. apply math models which expression can be used to determine the total weight of b baseballs that weigh 5.25 ounces each and s softballs that weigh 6.5 ounces each?

a ( 5.25b + 6.5s )
b ( 6.5b + 5.25s )
c ( 5.25b - 6.5s )
d ( 11.75(b + s) )

Explanation:

Step1: Calculate weight of baseballs

Each baseball weighs 5.25 ounces, and there are \( b \) baseballs. So weight of baseballs is \( 5.25 \times b = 5.25b \).

Step2: Calculate weight of softballs

Each softball weighs 6.5 ounces, and there are \( s \) softballs. So weight of softballs is \( 6.5 \times s = 6.5s \).

Step3: Total weight

Total weight is weight of baseballs plus weight of softballs, so \( 5.25b + 6.5s \).

Answer:

A. \( 5.25b + 6.5s \)