Solve {l}{10*0.1+21*0.19+35*0.24+49*0.18}{+73*0.11+102*0.08+122*0.06}{+146*0.04}

$$\left. \begin{array} { l } { 10 \times 0.1 + 21 \times 0.19 + 35 \times 0.24 + 49 \times 0.18 } \\ { + 73 \times 0.11 + 102 \times 0.08 + 122 \times 0.06 } \\ { + 146 \times 0.04 } \end{array} \right.$$

Evaluate

$$51.56$$

Solution Steps

Multiply 10 and 0.1 to get 1.

$$1+21\times 0.19+35\times 0.24+49\times 0.18+73\times 0.11+102\times 0.08+122\times 0.06+146\times 0.04$$

Multiply 21 and 0.19 to get 3.99.

$$1+3.99+35\times 0.24+49\times 0.18+73\times 0.11+102\times 0.08+122\times 0.06+146\times 0.04$$

Add 1 and 3.99 to get 4.99.

$$4.99+35\times 0.24+49\times 0.18+73\times 0.11+102\times 0.08+122\times 0.06+146\times 0.04$$

Multiply 35 and 0.24 to get 8.4.

$$4.99+8.4+49\times 0.18+73\times 0.11+102\times 0.08+122\times 0.06+146\times 0.04$$

Add 4.99 and 8.4 to get 13.39.

$$13.39+49\times 0.18+73\times 0.11+102\times 0.08+122\times 0.06+146\times 0.04$$

Multiply 49 and 0.18 to get 8.82.

$$13.39+8.82+73\times 0.11+102\times 0.08+122\times 0.06+146\times 0.04$$

Add 13.39 and 8.82 to get 22.21.

$$22.21+73\times 0.11+102\times 0.08+122\times 0.06+146\times 0.04$$

Multiply 73 and 0.11 to get 8.03.

$$22.21+8.03+102\times 0.08+122\times 0.06+146\times 0.04$$

Add 22.21 and 8.03 to get 30.24.

$$30.24+102\times 0.08+122\times 0.06+146\times 0.04$$

Multiply 102 and 0.08 to get 8.16.

$$30.24+8.16+122\times 0.06+146\times 0.04$$

Add 30.24 and 8.16 to get 38.4.

$$38.4+122\times 0.06+146\times 0.04$$

Multiply 122 and 0.06 to get 7.32.

$$38.4+7.32+146\times 0.04$$

Add 38.4 and 7.32 to get 45.72.

$$45.72+146\times 0.04$$

Multiply 146 and 0.04 to get 5.84.

$$45.72+5.84$$

Add 45.72 and 5.84 to get 51.56.

$$51.56$$

Factor

$$\frac{1289}{5 ^ {2}} = 51\frac{14}{25} = 51.56$$