Greetings!
"Write and solve an equation to determine how many servings of this item ...exactly 45 grams of cholesterol"...
The
variable in this equation would be the
amount of servings she can eat of the items.
Lets represent this as

;

=amount of servings
The item has
30 mg of cholesterol and she wants to only consume
45 mg.
The equation would be:

Solve for
x.
Divide both sides by
30.

Simplify.

Alisa can consume
1.5 servings of the item each day.
Hope this helps.
-Benjamin
You’re answer should be 9-7 hope this helped
Answer:
3 times
Step-by-step explanation:
She would have to weigh the fake coins and another bag of real coins to spot a difference, and then she would need to check another bag to see which was correct. Maybe thats right.
Considering High School level question, answer can be written as:
A system of 2 linear equations is [two] dimensional. It is a graph of [two] lines. The solutions can be [unique] solution if the graph intersects. [No] solution if the lines are parallel - meaning they have the same slope, or [Infinitely many] solutions if they are the same line.
Explanation:
when two lines are drawn on a two-dimensional plane then there are only three possible cases:
Case1: lines will intersect
In that case you will get a unique solution at the intersection point.
Case2: lines are parallel but don't touch each other
In that case there will be no point which lies on both lines so No solution.
Case3: lines are overlapping.
In that case all the points lies on both lines so infinitely many solutions.
Answer:
There is no solution for this set of equations.
The sum of two numbers can not have two different solutions.