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Radda [10]
3 years ago
8

I NEED HELP ASAP I DONT UNDERSTAND THIS!!

Mathematics
1 answer:
zheka24 [161]3 years ago
3 0

Let the cost of the hair dryer equal x.

The net cost plus a 40% markup equals 42, set up an equation and solve forex.

1.4x = 42

Divide both sides by 1.4

X = 42 / 1.4

X = 30

The net cost was £30

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answer
x = 108, y = 36 and z = 54</span>
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