syd5723
12.01.2021 •
Mathematics
The melting point of aluminum is 1220 degrees Fahrenheit. This is 1.96 times the melting point of lead. What is the melting point of lead?
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Ответ:
The melting point of led is: 622.45 Fahrenheit
Step-by-step explanation:
Given that
The melting point of aluminum is 1220 degrees Fahrenheit.
Let a be the melting point of aluminum and l be the melting point of lead.
The according to given statement, we can write that
Putting the value of a
dividing both sides by 1.96
Rounding off to nearest hundredth
Hence,
The melting point of led is: 622.45 Fahrenheit
Ответ:
17
Step-by-step explanation:
The discount on the shirt is 15%
Discount = price* discount rate
= 20 * 15%
= 20 * .15
=3
The new price is the previous price minus the discount
new price = 20-3
new price = 17