Solve 0.3*0.4*0.3+0.7*0.7*0.4+0.7*0.3*0.4

$$0.3 \times 0.4 \times 0.3+0.7 \times 0.7 \times 0.4+0.7 \times 0.3 \times 0.4$$

Evaluate

$$0.316$$

Solution Steps

Multiply 0.3 and 0.4 to get 0.12.

$$0.12\times 0.3+0.7\times 0.7\times 0.4+0.7\times 0.3\times 0.4$$

Multiply 0.12 and 0.3 to get 0.036.

$$0.036+0.7\times 0.7\times 0.4+0.7\times 0.3\times 0.4$$

Multiply 0.7 and 0.7 to get 0.49.

$$0.036+0.49\times 0.4+0.7\times 0.3\times 0.4$$

Multiply 0.49 and 0.4 to get 0.196.

$$0.036+0.196+0.7\times 0.3\times 0.4$$

Add 0.036 and 0.196 to get 0.232.

$$0.232+0.7\times 0.3\times 0.4$$

Multiply 0.7 and 0.3 to get 0.21.

$$0.232+0.21\times 0.4$$

Multiply 0.21 and 0.4 to get 0.084.

$$0.232+0.084$$

Add 0.232 and 0.084 to get 0.316.

$$0.316$$

Factor

$$\frac{79}{2 \cdot 5 ^ {3}} = 0.316$$