Mathematics, 13.04.2020 18:16 dtrdtrdtrdtrdrt3415

A restaurant serves sandwiches and salads. They sold 7 sandwiches and 7 salads for a total of $140 for lunch. In the evening, 21 sandwiches and 77 salads were sold for a total of $700. Let w represent the cost of a sandwich and d represent the cost of a salad.

Part A
Write and equation that represents the total cost at lunch time:
Write an equation that represents the total cost in the evening:

Part B
Find the cost of each sandwich (w ) using your system of equations above:

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