Question

A dairy cow can produce 5400 quarts of milk per year. Suppose there are about 6.4 million cows in the U.S.

Use scientific notation to calculate how much milk is produced in the U.S. yearly.
quarts.

Answer 1

3.46 x
`10^(10)`

Explanation:

Number of cows 6.4 million = 6.4 x
`10^(6)`

production rate for each cow per year = 5400 = 5.4 x 10³

Total amount of milk produced per year,

= 6.4 x
`10^(6)` x 5.4 x 10³

= (6.4) (5.4) x
`10^(6+3)`

= 34.56 x
`10^(9)`

= 3.46 x
`10^(10)`