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umka21 [38]
2 years ago
15

In April, the Messa family gets 800 text messages included in their plan. Together, Tommy and Mary use half of the messages. Jac

k and Stefanie use 240 messages. Cathy uses the rest of the messages. Write and evaluate an expression to find the number of messages Cathy uses. Part A: Write an expression to find the number of messages Cathy uses.
Mathematics
1 answer:
laiz [17]2 years ago
3 0

Answer: See explanation

Step-by-step explanation:

Total number of text messages = 800

Amount used by Tommy and Mary = 1/2 × 800 = 400

Number of messages uses by Jack and Stefanie = 240

The expression to find the number of messages Cathy uses will be:

= 800 - (1/2 × 800) - 240

Since the expression is 800 - (1/2 × 800) - 240, the number of messages that Cathy will use will be:

= 800 - (1/2 × 800) - 240

= 800 - 400 - 240

= 160 messages

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