1. Andy's sub-total at Chick-fil-A was $18.79 for several sandwiches and one sweet tea for $1.79. Write an equation. How many sandwiches did Andy buy?
Not exactly sure how to solve. What i have so far which is not right:
x + 1.79 = 18.79
How can i figure out how much each sandwich costs?
You can't figure this out unless you know how many sandwiches he ordered. If he ordered 5 sandwiches, each cost $3.40. Ten sandwiches would cost $1.70 each.
Ok, thanks. That was how the problem was worded.
You're welcome.
To figure out how much each sandwich costs, you can use the equation you started with:
x + 1.79 = 18.79
Here, "x" represents the cost of each sandwich. To isolate "x" on one side of the equation, you need to subtract 1.79 from both sides:
x = 18.79 - 1.79
Simplifying this equation gives you:
x = 17.00
So, each sandwich costs $17.00.
Now that you know the cost of each sandwich, you can determine how many sandwiches Andy bought. Since the total cost of the sandwiches is $18.79, you can divide that amount by the cost of each sandwich:
Number of sandwiches = Total cost / Cost per sandwich
Number of sandwiches = $18.79 / $17.00
Calculating this gives you:
Number of sandwiches ≈ 1.105
Since you can't have a fraction of a sandwich, you can round the answer to the nearest whole number. Therefore, Andy bought approximately 1 sandwich.