Maria wanted to bring back 5 million grains of sand from her trip to the beach. Each grain of sand weighs approximately 6.7 * 10 ^ - 7 * kg How heavy is the bag of sand that Maria brings home? (1 point)

Divide 5,000,000 6 7*10^ -7 = 5*10^ 6 6 7*10^ -7 = (5/6.7) * 10 ^ (6 + (- 7)) = 0.74 * 10 ^ - 1 = 0.074kg Multiply

5,000,000 gamma(6.7*10^ -7 )=(5*10^ 6 )*|(6.7*|10^ -7 )= (5 * 6.7)(10 ^ (6 + (- 7))) = 33.5 * 10 ^ - 1 kgMultiply

5,000,000 0(6.7 * 10 ^ - 7) = (5 * 10 ^ 6)(6.7 * 10 ^ - 7) = (5 * 6.7)(10 ^ (6 + 7)) = 33.5 * 10 ^ 13 = 3

kg

Multiply 5(6.7 * 10 ^ - 7) = 33.5 * 10 ^ - 7 = 3.35 * 10 ^ - 6 * kq

1 answer

So, the bag of sand that Maria brings home weighs approximately 0.074 kg.