Solve (8.5*0.25+12.5*0.75+16.5*0.1+20.5*0.05)

$$(8.5 \times 0.25+12.5 \times 0.75+16.5 \times 0.1+20.5 \times 0.05)$$

Evaluate

$$14.175$$

Solution Steps

Multiply 8.5 and 0.25 to get 2.125.

$$2.125+12.5\times 0.75+16.5\times 0.1+20.5\times 0.05$$

Multiply 12.5 and 0.75 to get 9.375.

$$2.125+9.375+16.5\times 0.1+20.5\times 0.05$$

Add 2.125 and 9.375 to get 11.5.

$$11.5+16.5\times 0.1+20.5\times 0.05$$

Multiply 16.5 and 0.1 to get 1.65.

$$11.5+1.65+20.5\times 0.05$$

Add 11.5 and 1.65 to get 13.15.

$$13.15+20.5\times 0.05$$

Multiply 20.5 and 0.05 to get 1.025.

$$13.15+1.025$$

Add 13.15 and 1.025 to get 14.175.

$$14.175$$

Factor

$$\frac{7 \cdot 3 ^ {4}}{5 \cdot 2 ^ {3}} = 14\frac{7}{40} = 14.175$$