Question

(-7,17-(-4,67))÷(-0,5)+0,9×(-3)=

Answer 1

$- 2.5 \div ( \frac{1}{2} ) - 2.7 = \frac{5}{2} \times 2 - 2.7 = 5 - 2.7 = 2.3$
ответ
$2.3$

Answer 2

Let's simplify the given expression step by step:

1. (-7,17 - (-4,67)): When you have a subtraction with a negative number inside parentheses, you change the sign of the terms inside the parentheses and then perform the subtraction.

(-7.17 - (-4.67)) = (-7.17 + 4.67) = -2.5

2. (-2,5) ÷ (-0,5): When dividing by a negative number, you change the sign of the result.

(-2.5) ÷ (-0.5) = 5

3. 0,9 × (-3): Multiply the numbers.

0.9 × (-3) = -2.7

Now, we have the simplified expression:

(-7.17 - (-4.67)) ÷ (-0.5) + 0.9 × (-3) = -2.5 ÷ (-0.5) - 2.7

Finally, evaluate the remaining expression:

-2.5 ÷ (-0.5) = 5

So, the final result is:

5 - 2.7 = 2.3