If you have 1000 blasting caps equal to 1.5 pounds of dynamite, how many pounds are equivalent to 2000 blasting caps?

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Multiple Choice

If you have 1000 blasting caps equal to 1.5 pounds of dynamite, how many pounds are equivalent to 2000 blasting caps?

Explanation:
Proportional reasoning: the mass scales with the number of blasting caps. If 1000 caps correspond to 1.5 pounds, then doubling the caps to 2000 doubles the mass, giving 3.0 pounds. You can also see this by per-cap weight: 1.5 pounds ÷ 1000 caps = 0.0015 pounds per cap, and 2000 caps × 0.0015 = 3.0 pounds.

Proportional reasoning: the mass scales with the number of blasting caps. If 1000 caps correspond to 1.5 pounds, then doubling the caps to 2000 doubles the mass, giving 3.0 pounds. You can also see this by per-cap weight: 1.5 pounds ÷ 1000 caps = 0.0015 pounds per cap, and 2000 caps × 0.0015 = 3.0 pounds.

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