Sara was mixing punch for a party from a recipe that calls for 3 parts ginger ale mixed with 2 parts pineapple juice. She graphed the people served compared to the total mixture.
Use the point shown on her graph to compute the ginger ale need to serve 20 people.
NEED TO SEE GRAPH!!!
Sara was mixing punch for a party from a recipe that calls for 2 parts ginger ale mixed with 1 part pineapple juice. She graphed the number of servings compared to the total number of liters of punch.
To compute the amount of ginger ale needed to serve 20 people, we need to first understand the ratio of ginger ale to people served, as described in the recipe.
The recipe states that we need 3 parts of ginger ale mixed with 2 parts of pineapple juice. This means that for every 3 units of ginger ale, we will need 2 units of pineapple juice.
Now, let's analyze the point shown on the graph. If the point on the graph represents the mixture needed to serve a certain number of people, we can use the ratio to determine the proportion of ginger ale to the total mixture.
Let's assume that the point on the graph is represented by the ordered pair (x, y), where x represents the ginger ale and y represents the total mixture. In this case, x and y will be in the same unit (e.g., cups, gallons, etc.).
Since the ratio of ginger ale to pineapple juice is 3:2, we can write the equation:
x/y = 3/2
Now, let's substitute the values from the point on the graph into the equation. Let's say the point on the graph is (5, 12). We can write:
5/12 = 3/2
To find the amount of ginger ale needed to serve 20 people, we need to find the value of x when y (the number of people served) is 20. We can solve for x by rearranging the equation:
x/20 = 3/2
Next, cross-multiply and solve for x:
2x = 20 * 3
2x = 60
x = 60/2
x = 30
Therefore, to serve 20 people, Sara would need 30 units of ginger ale.