Question #b318a

1 Answer
Oct 26, 2017

The equation is 4xx(x+5)=54 and by solving, we get x=8.5 meaning each salad costs $8.50

Explanation:

Let x be the cost of a salad. Then each day, she spends x+5 dollars. After doing this for four days, she has spent 4xx(x+5) dollars, which totals $54.

Putting this together, we have

4xx(x+5)=54

Now, to solve, multiply each term in the brackets by 4:

4x+20 = 54

Collect like terms (by subtracting 20 from each side)

4x = 34

Divide each side by 4

x=8.5

The salad costs $8.50