A furnace operates at 2,300°F. Before it can be used to extract metal from an ore, the temperature must be raised to 3,600°F. Th
is takes place at a rate of 250°F per quarter hour. Write an equation that gives the furnace temperature, T, after, q, quarter hours.
1 answer:
Answer:
T = 2300 + 250q
Step-by-step explanation:
Given that:
Initial temperature = 2300 F
Extraction temperature = 3600 F
Rate of temperature increase = 250 F per quarter hour, q
Temperature of furnace after q quarter hours ;
(Initial temperature + rate of temperature increase * number of quarter hours )
(2300 + 250 * q)
2300 + 250q
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(10%)(7200)
= (10/100)(7200)
= (1/10)(7200)
= 720
therefore he will pay $720
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