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Elan Coil [88]
3 years ago
13

When servicing a heating boiler and radiators, a plumber knows that the time

Mathematics
1 answer:
Elena L [17]3 years ago
3 0
£110 as 45mins times 4 radiators divided by 60 mins =3 hours

3 hours + 1 hour = 4 hours
4 hours times £20= £80
£80+£30=£110
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The formula for radius is R=\frac{C}{2\pi }.

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Hope this helps, now you know the answer and how to do it. HAVE A BLESSED AND WONDERFUL DAY!

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MakcuM [25]

Answer:

20 ≤ x ≤  70

Step-by-step explanation:

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30 ≤ x + 10 ≤ 80

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