Answer:
The equation that will determine the cost of two folders is; 3x = 2× $2.91
and the cost of the 2 folders is $1.94
Step-by-step explanation:
To solve this problem, we will follow the steps below;
Using proportion;
Let x be the cost of 2 folders
3 folders = $2.91
2 folders = x
Cross-multiply
3x = 2× $2.91
The equation that will determine the cost of two folders is
3x = 2× $2.91
We can go ahead and solve
3x = $5.82
Divide both-side of the equation by 3
[tex]\frac{3x}{3}[/tex] = [tex]\frac{5.82}{3}[/tex]
x = $ 1.94
The cost of 2 folders is $1.94
Answer:
2/x = 3/$2.91
Step-by-step explanation:
Let x represent the unknown cost of 2 folders. Since 2 folders cost x, we have the following proportion:
2/x
We can write the fact that 3 folders cost $2.91 as a proportion:
3/$2.91
The cost changes along with the number of folders purchased, and so the two proportions are equivalent.
2/x = 3/2.91
hope this helps! Please make me brainliest
