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STALIN [3.7K]
4 years ago
4

Pablo created the bar model and equation after paying a $9.79 lunch bill with a $20 bill. What is the value of c, and what does

it represent in this problem?

Mathematics
2 answers:
goldfiish [28.3K]4 years ago
8 0

A bar model is a graphic representation of a number like bars or boxes used to answer number problems. Bar models are useful to understand of how a problem needs to be answered. In the equation, value C represents the change he received after paying with a bill higher of the pirce it costs. We can easily calculate it by:

20-9.79=C

10.21=C

Komok [63]4 years ago
4 0
A bar model shows us the concepts of adding and subtracting in a visual way.

Please see the picture attached for this scenario.

c stands for the amount of change received.

To find the change subtract $20 and $9.79.

c = $10.21

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