EXPLANATION:
To get the solution of the simultaneous equation, using the elimination method:
We will have the following steps:
Step 1:
Write the two equations:

Step2: Subtract the two equations:

Step 3: Simplify the expression

Step 4: Substitute x=-2 into the formula:

Therefore, the answer is

Thus,
Option B is correct
Answer:
83.33%
Step-by-step explanation:
Amount she eats everyday = 150g
Amount she eats now = 25g
By what percent did Amanda decrease the amount of sugar she eats?
Percentage decrease in the amount of sugar she eats = (150 g - 25g) / 150g × 100
= 125g / 150g × 100
= 0.8333333333333 × 100
= 83.33%
Percentage decrease in the amount of sugar she eats = 83.33%
Answer:
rational
Step-by-step explanation: