Mark M. answered • 09/03/16

Mathematics Teacher - NCLB Highly Qualified

Mark M.

09/03/16

Mai X.

09/03/16

Mark M.

09/03/16

Mai X.

09/03/16

Mark M.

09/03/16

Mark M.

09/03/16

Mai X.

asked • 09/03/16Nhu is saving to buy a car. In the first 6 months, his savings were $80less than 3/4 the price of the car. In the next 6 months, Nhu saved $50 more than 1/5 the price of the car. He still needs $370. a. what is the price of the car? b. What is the average amount of money Nhu saved each month? c. If Nhu continues to save the average amount each month, in how many months will he be able to afford the car?

More

Mark M. answered • 09/03/16

Tutor

5.0
(243)
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.

Report

09/03/16

Mai X.

Thank you so much.

Report

09/03/16

Mark M.

You are welcome so much!

Report

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?

Report

09/03/16

Mark M.

a reprsents the artistic score

7.6 + 0.25a = 8.0

Can you solve to a?

Report

09/03/16

Mark M.

Forgot the 0.75

Should be

(0.75)(7.6) + 0.25a = 8.0

Report

09/03/16

Ask a question for free

Get a free answer to a quick problem.

Most questions answered within 4 hours.

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.

Mai X.

09/03/16