Jfhehwnxodin3291 Jfhehwnxodin3291
  • 04-01-2021
  • Mathematics
contestada

An electric heater uses 7 1/2 units of electricity in 3 hours. How many units does it use in 5 hours?

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pstnonsonjoku
pstnonsonjoku pstnonsonjoku
  • 04-01-2021

Answer:

12.5 units or 12 1/2 units

Step-by-step explanation:

From the question, it uses 7.5 units in 3 hours.

In one hour it will use; 7.5/3 = 2.5 units

If 2.5 units is used in 1 hour

In 5 hours; 5 × 2.5 units will be used. This gives us 12.5 units or 12 1/2 units.

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