3 years ago

Ms. Johnson asked her class to write an equivalent expression to

1 answer:

7 0

No one got the correct answer. The answer is supposed to be 7(2d+3k-dk-1). All the coefficients are divisible by 7, thus only the integers are changed. However, the variables cannot be a factor because they do not have the same variables that all the coefficients must have.

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Laura, David, and Carlos served a total of 115 orders

David served 3 times as many orders as Carlos. David = 3x

Laura served 10 more orders than Carlos. let Carlos = x

How many orders did they each serve? Laura = x + 10

Carlos + David + Laura = 115

x + 3x + x+10 = 115

5x + 10 = 115

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