Answer:
Her weight before was 100kg.
Step-by-step explanation:
This question can be solved using a rule of three.
Amy finds that her weight has decreased by 25%
So her weight is 100-25 = 75% = 0.75 of the original amount(what it was before).
Her current weight is 75kg.
Her previous weight was x, which is 100% = 1.
So
75 - 0.75
x - 1
Her weight before was 100kg.
Answer:
Step-by-step explanation:
The graph in the attached figure
<em>Find the equation of the dashed line</em>
we have
points (0,2) and (5,3)
<em>Find the slope</em>
The formula to calculate the slope between two points is equal to
substitute the given values
<em>Find the equation of the dashed line in slope intercept form</em>
we have
substitute
Remember that
The solution of the inequality is the shaded area below the dashed line
therefore
The equation of the inequality is
