sosasubzero
04.01.2021 •
Mathematics
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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Ответ:
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.
Ответ:
good morning
Step-by-step explanation:
100/100 it's really good