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1 year ago

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A sewing machine uses 1.6kWh of electricity in one day. If electricity costs 9p per unit, what is the total cost in pence of usi

ng the sewing machine that day? Give your answer to 3 significant figures.

1 answer:

atroni [7]1 year ago

8 0

Answer:

$\huge\boxed{\sf 1.6\ units = 14.4p}$

Explanation:

Since,

<h3><u>1 kWh = 1 unit</u></h3>

So,

1.6 kWh = 1.6 units

If,

<h3>1 unit = 9p</h3>

1.6 units = 9p × 1.6

1.6 units = 14.4p

$\rule[225]{225}{2}$

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