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The Lopez family buys 4 dinners at the market. The total cost is $5 above or below $50. Write an equation that models the cost x, in dollars of a single dinner?

answer: |_-_x|-_=0​

2 Answers

6 votes

Answer:

l 50 - 4x l - 5 = 0

Step-by-step explanation:

User Alan Christensen
by
8.9k points
3 votes

Answer: |50 - 4x| - 5 = 0

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Step-by-step explanation:

x = cost of one dinner

4x = cost of four dinners

50-4x = the difference in the cost of $50 vs 4x dollars

To ensure this difference is never negative, we use absolute value to form the expression |50-4x|

Set this equal to 5 since we want this distance or difference to be 5 units above or below 50

|50-4x| = 5

|50 - 4x| - 5 = 0

User Lukas Grebe
by
8.7k points

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