Question

analysis questions

1. image 2 shows the recipe for a sandwich made with bread and cheese. a chemist changed the recipe to look like a chemical equation using the following symbols to represent each ingredient.

symbols: bread = b cheese = c
equation: 2b + c → b₂c
image 3 shows the recipe for a sandwich made with bread and cheese. use the arrow symbol shown above for bread and cheese, and choose your own symbol to represent meat. write a chemical equation to represent the recipe in image 3.
image 3: recipe for a sandwich that is made with bread, meat, and cheese.
symbols: bread = b cheese = c meat = m
equation: 2b + m + c → bmc

1. a different sandwich recipe creates a bread, meat and cheese sandwich with the formula b₃m₂c. write the balanced chemical equation that shows the correctly proportioned ingredients to make the sandwich.
2. a restaurant makes sandwiches according to the recipe in image 3. due to a busy lunch rush, they ran out of bread. an employee went out and bought 2 loaves of bread so that they could continue making sandwiches. each loaf of bread had 21 slices, and the restaurant used the 2 loaves of bread to sell 15 more sandwiches. how many slices of bread were left? explain your answer in detail.

Explanation:

Step1: Determine total slices of bread bought

Each loaf has 21 slices and 2 loaves are bought, so total slices = 2×21.
$2\times21 = 42$

Step2: Determine slices of bread used

The recipe in image 3 uses 2 slices of bread per sandwich. 15 sandwiches are made, so slices used = 2×15.
$2\times15=30$

Step3: Calculate remaining slices of bread

Subtract slices used from total slices. Remaining slices = 42 - 30.
$42 - 30=12$

Answer:

12