Question

1) 308,6 ∙ 0,5 + 8,3 ∙ 4,5 - 3,5 ∙ ( 72 -71,4 ) = 2) 101,1 ∙ ( 0,37 + 1,53 ) - ( 134,6 - 92,7 ) ∙ 0,031 = 3) 125,61 - ( 3,67 – 2,38 ) ∙ (3,67 + 2,38 ) – 40,49 = 4) 17,4 ∙ 0,5 – ( 9,8 + 1,4 ) ∙ 0,1 + 0,3 ∙ (24,3 – 18,8

Answer 1

1)189,55

2)190,7911

3)77,3155

Answer 2

Sure, I'd be happy to help you solve these expressions step by step:

1. $308.6 \cdot 0.5 + 8.3 \cdot 4.5 - 3.5 \cdot (72 - 71.4)$

Calculating each part: $308.6 \cdot 0.5 = 154.3$ $8.3 \cdot 4.5 = 37.35$ $72 - 71.4 = 0.6$ $3.5 \cdot 0.6 = 2.1$

Now putting it all together: $154.3 + 37.35 - 2.1 = 189.55$

2. $101.1 \cdot (0.37 + 1.53) - (134.6 - 92.7) \cdot 0.031$

Calculating each part: $0.37 + 1.53 = 1.9$ $134.6 - 92.7 = 41.9$ $41.9 \cdot 0.031 = 1.2989$

Now putting it all together: $101.1 \cdot 1.9 - 1.2989 = 192.09 - 1.2989 = 190.7911$

3. $125.61 - (3.67 - 2.38) \cdot (3.67 + 2.38) - 40.49$

Calculating each part: $3.67 - 2.38 = 1.29$ $3.67 + 2.38 = 6.05$ $1.29 \cdot 6.05 = 7.7745$

Now putting it all together: $125.61 - 7.7745 - 40.49 = 77.3465$

4. $17.4 \cdot 0.5 - (9.8 + 1.4) \cdot 0.1 + 0.3 \cdot (24.3 - 18.8)$

Calculating each part: $17.4 \cdot 0.5 = 8.7$ $9.8 + 1.4 = 11.2$ $11.2 \cdot 0.1 = 1.12$ $24.3 - 18.8 = 5.5$ $0.3 \cdot 5.5 = 1.65$

Now putting it all together: $8.7 - 1.12 + 1.65 = 9.23$

So, the solutions to the given expressions are:

1. $189.55$
2. $190.7911$
3. $77.3465$
4. $9.23$