Algebra 1

posted by .

Two fewer than a number doubled is the same as the number decreased by 38. Find the number.

If n is "the number," which equation could be used to solve for the number?

  • Algebra 1 -

    "Two fewer than a number" doubled
    2(n-2) = n-38

    Two fewer than "a number doubled"
    2n-2 = n-38

  • Algebra 1 -

    Thank Yu. Unknowns seem to get me stuck. I have another one.

    Separate 846 into 3 parts so that the second part is twice the first part and the third part is triple the second part.

    Which of the following equations could be used to solve the problem?

  • Algebra 1 -

    call the parts a,b,c

    a+b+c = 846
    b = 2a
    c = 3b

    substitute in for b and c to get

    a+2a+3(2a)=846
    a+2a+6a = 846
    9a = 846
    a = 94
    so, b=188
    c=564

    check:
    94+188+564=846

    To solve this kinda stuff, just take it one step at a a time. First, translate the words into symbols. Then substitute things as needed. After a thousand or so, you'll get the hang of it. :-)

  • Algebra 1 -

    Thanks :)

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Help me please

    Find a number that is decreased by 12 when you form half of the number, explain how you got your answer. It reads to me that n/2 + 12 = n multiply each side by two... n+24=2n subtract n from both sides n-n+24 = 2n-n 24=n check it. …
  2. Algebra

    One number is 6 more than another number and their sum is 2. Whats the equation for that. x = one number y = another number =============== x + y = 2 x -6 = y solve for x and y x=first number y=second number x=y+6 x+y=2 you can then …
  3. algebra

    1. a number increased by 21 is 28. find the number 2. a number decreased by 12 is equal to 30. find the number. 3. 8 less than a number is 15. fid the number
  4. 6th grade math

    Can you check these problems, please? Translate each phrase into algebraic expression. 1. 5 more than D Ans: 5 + D 2. Twice a number W Ans: 2*W 3. Product of 60 and W Ans: 60*W 4. A number, N, decreased by 18 Ans: N - 18 5. 14 minus
  5. Math- urgent

    One more than 3 times a number is the same as 5 times the number, decreased by 15. Find the number. • Assign the variable • Write an equation • Solve equation
  6. algebra

    Please check A number m decreases by 4 m-4 A number d divided by k,minus 6 D/k-6 A number b less 8 B-8 The sum of a number m and 10 M+10 18 divided by a number r 18/r 32 decreased by a number n 32-n A number k increased by itself K+k
  7. Algebriac Expressions

    2 less than 7 times a number = 2) Sarah's age decreased by 2 = 3) One third as many books = 4) Earns $13 per hour = 5) 4 years younger than Marcus 6) 2 times a number, decreased by 4 7) 9 less than the product of 15 and a number 8) …
  8. Math

    The difference of two number is seven. when the larger number is decreased by five, then doubled, it is five more than the small number. Find the numbers.
  9. Algebra

    Determine all pairs (m, n) of a two-digit natural number m and a single-digit natural number n satisfying the following conditions. 1) If the number n is given as the number between the two digits of the number m, then a three-digit …
  10. Math

    Determine all pairs (m, n) of a two-digit natural number m and a single-digit natural number n satisfying the following conditions. 1) If the number n is given as the number between the two digits of the number m, then a three-digit …

More Similar Questions