math

posted by .

If 28% of a sum is $100.80, what is the sum?

A. $129.02
B. $277.78

C. $282.24

D. $360.00
how can i do this

  • math -

    Change 28% to a decimal. Let x = the sum.

    0.28x = 100.8
    x = 100.8/0.28
    x = ?

  • math -

    i got the answer it's D thanks
    how did you figure out which operation to use.

  • math -

    I thought -- 28% of what is 100.80? -- and then put it in algebraic terms.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Precalculus

    Find the sum of 20 (summation notation symbol)k=1 then (3k-5) If you mean the sum of the first 20 terms, beginning with k=1, of ak = 3k - 5, that would be -20 x 5 = -100 PLUS the sum of the first 20 terms of ak = 3k The latter is 3 …
  2. Math

    Minimizing Sum: Find two positive numbers whose sum is 100 and the sum of whose squares is a minimum.
  3. math

    what set of intervals would you choose to create a stem-and-leaf-plot for each set of data?
  4. gr.7 math

    what set of intervals would you choose to create a stem-and-leaf-plot for each set of data?
  5. math URGENT!!!!

    i have a list of 5 different numbers. the sum of 2 of the numbers is 0. the sum of 2 of the numbers is 1. the sum of 2 of the numbers is 2. the sum of 2 of the numbers is 3. the sum of 2 of the numbers is 4.the sum of 2 of the numbers …
  6. probability

    two fair six-sided dice are rolled and the sum of the dots on the top faces is recorded. a) complete the table, showing the number of ways each sum can occur sum: 1 2 3 4 5 6 7 8 9 10 11 12 ways:1 2 3 b)use the table to find the probability …
  7. Consumer Math

    Will you please check my answers? 1. Your employer has 600 business cards printed for you, and you give away 280 of them. To the nearest hundredth, what percent of the cards is left?
  8. Math

    X X2 1 1 2 4 3. 9 5 25 8. 64 10 100 It asks me to do the Sum of X Sum of Squares Sum of X squared Can you please help me on this. I don't get it
  9. math

    1. The product of 7/16, 4/3, and 1/2 is A. 7/12. (B). 7/24. C. 21/32. D. 2 13/48. 2. The total of 36, 78, 198, 475, and 620 is (A). 1,407. B. 2,109. C. 1,731. D. 1,187. 3. The quotient of 794.1 divided by 7.61, expressed to two decimal …
  10. MATH

    AN AP has 21 term the sum of 10 ,11,12 term is 129 and sum of last 3 term is 237.find AP

More Similar Questions