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SpyIntel [72]
3 years ago
11

10. The bill (including parts and labor) for the repair of an oven was $142. The cost

Mathematics
1 answer:
Lubov Fominskaja [6]3 years ago
6 0

Total cost=$142

cost of parts=$62

cost paid for labour=$142-$62=$80

According to question,

》cost of labour per hr=$32

which can be written as,

》cost of labour/time=$32

Use cross multiplication,

》time=cost of labour/32

Since cost of labour is 80,

Time=80/32

=2.5hrs

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