Mark M. answered • 09/03/16
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Mathematics Teacher - NCLB Highly Qualified
p represents the price of the car
In the first 6 months: 0.75p - 80
In the next 6 months: 0.2p + 50
0.75p - 80 + 0.2p + 50 + 370 = p
0.95p + 340 = p
340 = 0.05p
6,800 = p
Can you answer the questions?
Mark M.
First six months:
0.75(6800) - 80
Divide this amount by 6 to get the monthly average
Second six months:
0.2(6800) + 50
Divide this amount by 6 to get the monthly average
If you want the average over the twelve months, add the two and divide by twelve.
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09/03/16
Mai X.
Thank you so much.
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09/03/16
Mark M.
You are welcome so much!
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09/03/16
Mai X.
Can you also help with this is one. In a gymnastics compeition, an athlete's final score is calculated by taking 75% of the average technaical score and adding 25% of the artistic score. All scores are out of 10, and one gymnst has 7.6 average technical score. what artisitc score does the gymnast need to have a final score of at least 8.0?
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09/03/16
Mark M.
a reprsents the artistic score
7.6 + 0.25a = 8.0
Can you solve to a?
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09/03/16
Mark M.
Forgot the 0.75
Should be
(0.75)(7.6) + 0.25a = 8.0
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09/03/16
Mai X.
09/03/16