Step-by-step explanation:
Given:
Ken owns 7 baseballs.
Each baseball weighs 0.3 pounds.
If one ball weighs 0.3 pounds,
then 7 baseballs weigh 7 × 0.3 pounds,
which sums to 2.1 pounds.
Therefore, the total mass of the 7 baseballs is 2.1 pounds.
To illustrate this using boxes as per the provided information:
Considering the weight involves decimals,
assign 1 square box as equivalent to 0.1 pounds.
Answer:
1. For a single baseball weighing 0.3 pounds, Ken should shade 3 boxes.
Since 1 box corresponds to 0.1 pounds,
3 boxes equal 0.3 pounds.
2. To depict the combined weight of seven baseballs (2.1 pounds), Ken must shade this set of boxes seven times.
This means shading 3 boxes per baseball, repeated 7 times.
This explains how the shaded area in the second part compares to the first.
3. The shaded model represents the expression 0.3 × 7.
4. The total weight of the baseballs is 2.1 pounds.