math

posted by .

0.05x+0.12(x+5000)=940 the answer is 2000 but how do you get it? don't you have to multiply by 100?

  • math -

    yes, I would multiply by 100 to get rid of my decimals
    (you don't HAVE to)

    5x + 12(x+5000) = 94000
    5x + 15x + 60000=94000
    17x = 34000
    x = 2000

    or

    .05x + .12x + 600 = 940
    .17x = 340
    x = 340/.17 = 2000

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Pre-Calculus

    The monthly revenue acheived by selling x boxes of candy is calculated to be x(5-0.05x)dollars. The wholesale cost of each box of candy is $1.50. How many boxes must be sold each month to achieve a profit of at least $60. Can someone …
  2. maths

    lan completed part of a race and had 2000m left to run.if he had completed 3/5 of the race,what is the total distance he had to run?
  3. Calculus

    The cost (in dollars) of producing x units of a certain commodity is c(x)=5000+10x+0.05x^2 Find A=100 to x=105 so far i got y-y/x-x= C(105)-C(100)/105-105 i don't understand how it comes out to be 101.25/5 please help me
  4. 6th grade math

    Can you check these percent proportion problems?
  5. maths algebra

    HI STEVE, THANKS for your reply back it was the wrong answer the one you worked, yes a hard question, here is an example of simultaneous questions. x-2/3 + y-1/4 =13/12 (1) 2-x/2 + 3+y/3 =11/6 (2) first step is to get rid of fractions. …
  6. math

    To get a year's digit product, multiply the year's digits. For example, between 1900 and 2000, the 2 years 1913 and 1931 each have a digit-product of 27. What is the largest integer n for which n of the years from 1900-2000 have the …
  7. Networks, Matrices, Linear equations.

    x y A(0.2 0.8)3000 B(0.5 0.5)2000 C(0.7 0.3)5000 Where A, B, C are countries, and x and y are resorts. The Matrix represents the percent of visitors. I need to use this matrix which I have worked out to find the number of visitors …
  8. MATH

    The quantity demanded for a certain brand of portable CD players is 200 units when the unit price is set at $90. The quantity demanded is 1,200 units when the unit price is $40. Find the demand equation. I'm leaning toward d, but I'm …
  9. math

    explain and demonstrate how to change 4/20 into a percent there are two ways we can work this out 4/20 times by 5 overall to get it out of 100, becomes 20/100. or you can do 4/20 then times that by 10 or 20 x what = 100?
  10. Math

    answer in the box. The Students' Union need to order some pens and notebooks. How much does it cost to order 1000 pens and 2000 notebooks?

More Similar Questions