Question

100 * (-2/7 * 7/8 + 0.025)

Answer 1

 
1. -2/7*7/8= -1/4= -0,25
2. -0,25 0,025= -0,225
3. 100*(-0,225)= -22,5

Answer 2

   100*(-2/3*7/8+0,025)= 
     -2/3*7/8=7/12 
      0,025=25/1000=1/40
       7/12 + 1/40= 73/120
        100*73/120=60,83(3)

Answer 3

100 * (-2/7 * 7/8 + 0.025)

First, let's simplify the terms inside the parentheses: -2/7 * 7/8 = -2/56 = -1/28

Now we can substitute this back into the original expression: 100 * (-1/28 + 0.025)

Now we need to find a common denominator for the two terms inside the parentheses. The common denominator is 28, so we need to convert 0.025 to a fraction with a denominator of 28: 0.025 * 28/28 = 0.7

Now we can substitute this back into the expression: 100 * (-1/28 + 0.7)

Now we can add the two terms inside the parentheses: -1/28 + 0.7 = 0.696428571

Now we can multiply by 100: 100 * 0.696428571 = 69.6428571

So, the final answer is approximately 69.6428571.