2/3x -1=9-1/6x please help thanks

Answers

Answer 1
Answer: I hope this helps you



2/3x+1/6x=9+1


4/6x+1/6x=10


5/6x=10


5/10=6x


x=1/12

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Alexander purchased a computer on sale. The regional price was $1200. The sale price was 5/6 of the original price. How much did Alexander pay for the computer?

Blank divided by 7>800

Answers

Hi there

Replace the blank space by x

so x/7 > 800
All you have to do is cross-multiply

x > 7*800
x> 5600


I hope that's help ! 

the answer Is 114.29

What is half of 3 5/10?

Answers

3 5/10 = 35/10

Therefore, (35/10)/2
= 35/20 

Mr. Pham has $410,000 in a retirement account that earns 3.85% simple interest each year. Find the amount earned each year by this investment.

Answers

Mr Pham's retirement account has 410 000 dollars. Let's put to a situation that he's not withdrawing from his account for several years, and this earns an annual interest of 3.85%.Let's find out how much will he earn:  => 3.85% = 3.85% / 100% = .0385 => 410 000 * 0.0385 = 15 785 dollars.Mr, Pham will earn around 15 785 dollars in every year for 2 years he will earn times 2 of this amount that will be added to his retirement amount. => 15 785 dollars * 2 = 31570 dollars for 2 years and so on.

You have 9 gallons of lemonade to sell. You use a cone-shaped cups that are10 centimeters in diameter and 12 centimeters tall. Each customer uses one paper cup. How many paper cups will you need if you sell all of the lemonade? (I gal is approximately 3785 cm cubed)

Answers

Volumen, V, of a cone: V=(1/3). π. (r^2) . h

r = 10cm/2 = 5cm
h = 12
V= (1/3).π.(5cm)^2.12cm = 314.16 cm^3

9 gallons = 9*3785 cm^2 = 34,065 cm^3

# paper cups = 34,065 cm^3 / 314.16 cm^3/cup = 108.43 cups

May be 108 cups is enough but if you want to be sure have 109 cups. Of course  you do not have enough lemonade to fill completely 109 cups.

Explain why 7 times x/7=x. How does your answer help you solve a division equation such as x/7=2?

Answers

Dear Ajtocute, let's have x=9 Multiply 7 by 9 to get 63. Then, you divide 63 by 7 to get back to 9. You just cancel out the multiplication with division.

The cost in dollars to print n books is 500 + 10n.How many books are printed for a cost of $15 000?

Answers

500 + 10n = 15,000

Subtract 500 from each side:

10n = 14,500

Divide each side by 10 :

n = 1,450 books
500+10n=15.000 \n \n 500-500+10n =15.000-500 \n \n 10n=14.500 \n \n n= (14.500)/(10) \n \n \boxed{n=1.450}