Atwo digit postive number is such that the ones digit is 2.5 times ad much as the tens digit if the number obtained when the digit are
reversed is 27 find the number

25.

Step-by-step explanation:

We can write the expression as 10x + 2.5x    where x is the tens digit.

So reversed we have 25x + x.

- and  25x + x - (10x + 2.5x) = 27

22.5x - 9x = 27

13.5x = 27

x = 2 and 2.5x = 5.

So the number is 25.

a. 12.5 kg

step-by-step explanation:

f = ma

so

m = f/a = (2500 n)/(200 m/s²) = 12.5 kg

1 n = 1 kg·m/s²