Question

A)-5,5÷5= b)10,32÷(-2,5)= c) (-4 5/7)÷(-11/14)= 4,3×(-7) -9,6÷ (9,2-10,8) =

Answer 1

$- 5.5 \div 5 = - 1.1$

$10.32 \div ( - 2.5) = - 4.128$

$( - 4 \frac{5}{7} ) \div ( - \frac{11}{14} ) = \frac{33 \times 14}{7 \times 11} = 3 \times 2 = 6$

$4.3 \times ( - 7) - 9.6 \div (9.2 - 10.8) = - 30.1 - 9.6 \div ( - 1.6) = - 30.1 + 6 = - 24.1$

Answer 2

Let's solve the given expressions step by step:

a) -5.5 ÷ 5: The division of -5.5 by 5 can be calculated as follows: -5.5 ÷ 5 = -1.1

b) 10.32 ÷ (-2.5): To divide 10.32 by -2.5, we have: 10.32 ÷ (-2.5) = -4.128

c) (-4 5/7) ÷ (-11/14): To divide the mixed number (-4 5/7) by a fraction (-11/14), we need to convert the mixed number into an improper fraction: -4 5/7 = -(4 * 7 + 5) / 7 = -33/7

Now we can perform the division: (-33/7) ÷ (-11/14) = (-33/7) × (-14/11) Canceling out common factors, we get: = -33/1 × -2/1 = 66

d) 4.3 × (-7) - 9.6 ÷ (9.2 - 10.8): Let's start by calculating the expression within the parentheses: 9.2 - 10.8 = -1.6

Now we can substitute the value back into the original expression: 4.3 × (-7) - 9.6 ÷ (-1.6)

Next, let's calculate the division part: 9.6 ÷ (-1.6) = -6

Now we can substitute the value back into the expression: 4.3 × (-7) - (-6)

Multiply the values: = -30.1 - (-6) = -30.1 + 6 = -24.1

Therefore, the result is -24.1.