Question

-1 3/4 : ( - 7 ) + 6,3 : 10 – ( - 3 7/10)*5=

Answer 1

Ответ:

19,38

Пошаговое объяснение:

-1 3/4 ÷ ( - 7 ) + 6,3 ÷ 10 - ( - 3 7/10) × 5 =

= -7/4 ÷ (-7) + 0,63 + 3 7/10 × 5 =

= 7/4 × 1/7 + 63/100 + 37/10 × 5 =

= 1/4 + 63/100 + 37/2 =

= 969/50 = 19 19/50 = 19,38

Answer 2

Ответ:

Пошаговое объяснение:

1 3/4 : ( - 7 ) + 6,3 : 10 – ( - 3 7/10)×5= -7/4 ÷ (-7) + 63/100 + 3 7/10 × 5 = - 7/4 × 1/7 + 63/100 + 37/10 × 5 = 1/4 + 63/100 + 37/2 = 969/50 = 19 19/50

Answer 3

Let's break down the given expression step by step:

1. -1 3/4: Convert the mixed number to an improper fraction: -1 3/4 = -7/4. So, the expression becomes -7/4 : (-7) + 6.3 : 10 - (-3 7/10) * 5.

2. -7/4 : (-7): Divide -7/4 by -7. -7/4 divided by -7 = 7/4.

3. 6.3 : 10: Divide 6.3 by 10. 6.3 divided by 10 = 0.63.

4. -3 7/10: Convert the mixed number to an improper fraction: -3 7/10 = -37/10.

5. (-37/10) * 5: Multiply -37/10 by 5. (-37/10) * 5 = -37/2.

6. Now, substitute the values obtained from steps 2, 3, and 5 into the expression: 7/4 + 0.63 - (-37/2).

7. To simplify the expression, convert all fractions to decimals: 7/4 = 1.75, -37/2 = -18.5.

8. Substitute the decimal values back into the expression: 1.75 + 0.63 - (-18.5).

9. Simplify the expression inside the parentheses: 1.75 + 0.63 + 18.5.

10. Add the values: 1.75 + 0.63 + 18.5 = 20.88.

Therefore, the value of the given expression is 20.88.