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lora16 [44]
3 years ago
9

Find the cost of sending 25 text messages. Text messages- 5,6,7 Cost- 2.5,3,3.5

Mathematics
2 answers:
ryzh [129]3 years ago
5 0

Answer:

  • 12.5

Step-by-step explanation:

<u>This is a proportional relationship:</u>

  • y = kx

<u>Use a pair of values to find the coefficient of proportionality (5, 2.5):</u>

  • 2.5 = 5k
  • k = 2.5/5 = 0.5

k = 0.5 units represents a cost of a text message.

<u>25 text messages cost:</u>

  • 25*0.5 = 12.5 units
Marina86 [1]3 years ago
4 0

Answer:

12.5 is the answer :D

Step-by-step explanation:

Please give me brainliest :D

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