Solve 9*10^9*5*2*10^-9/10=

$$9 \cdot 10 ^ { 9 } \cdot \frac { 5 \cdot 2 \cdot 10 ^ { - 9 } } { 10 } =$$

Evaluate

$$9$$

Solution Steps

Calculate 10 to the power of 9 and get 1000000000.

$$9\times 1000000000\times \frac{5\times 2\times 10^{-9}}{10}$$

Multiply 9 and 1000000000 to get 9000000000.

$$9000000000\times \frac{5\times 2\times 10^{-9}}{10}$$

Multiply 5 and 2 to get 10.

$$9000000000\times \frac{10\times 10^{-9}}{10}$$

Calculate 10 to the power of -9 and get \frac{1}{1000000000}.

$$9000000000\times \frac{10\times \frac{1}{1000000000}}{10}$$

Multiply 10 and \frac{1}{1000000000} to get \frac{1}{100000000}.

$$9000000000\times \frac{\frac{1}{100000000}}{10}$$

Express \frac{\frac{1}{100000000}}{10} as a single fraction.

$$9000000000\times \frac{1}{100000000\times 10}$$

Multiply 100000000 and 10 to get 1000000000.

$$9000000000\times \frac{1}{1000000000}$$

Multiply 9000000000 and \frac{1}{1000000000} to get 9.

$$9$$

Factor

$$3^{2}$$