Question

k
j
​
−0.2kstart fraction, j, divided by, k, end fraction, minus, 0, point, 2, k when j=25j=25j, equals, 25 and k=5k=5k, equals, 5.

Answer 1

Answer:  $4$

Step-by-step explanation:

 For this exercise it is important to remember the multiplication of signs:

$(+)(+)=+\\(-)(-)=+\\(-)(+)=-\\(+)(-)=-$

Given the following expression provided in the exercise:

$\frac{j}{k} -0.2k$

You need to follow the steps below in order to find its value when  $j=25$ and $k=5$ :

Step 1: You must ubstitute $j=25$ and $k=5$ into the expression:

$=\frac{25}{5} -0.2(5)$

Step 2: Now you can solve the multiplication:

$=\frac{25}{5} -1$

Step 3: You must divide the numerator 25 by the denominator 5. Then:

$=5-1$

Step 4: Finally, you must solve the subtraction. Therefore, you get:

$=4$