Math-Algebra

Tony asked his friend to guess his mathematics test score. He gave these hints to help his friend guess:

-It has two digits

-The digit in the tens place is two more than twice the digit in the ones place.

-The number formed by reversing the order of the digits is 5 more than 3 times the sum of the digits.

What was his test score?

Answer is 83, but i'm not sure how it is worked out.

  1. 👍
  2. 👎
  3. 👁
  1. just write the words as math. If the tens digit is t and the units digit is u, then:

    t = 2u+2
    10u+t = 5+3(t+u)

    solve for t and u

    1. 👍
    2. 👎
  2. -It has two digits

    _ _

    -The digit in the tens place is two more than twice the digit in the ones place.

    41 or 62 or 83

    -The number formed by reversing the order of the digits is 5 more than 3 times the sum of the digits.

    1. 👍
    2. 👎
    👤
    Ms. Sue

Respond to this Question

First Name

Your Response

Similar Questions

  1. I need help, I'm stuck...what is the correct answe

    The table below shows the scores of a group of students on a 10-point quiz. Test Score Frequency 3 0 4 2 5 2 6 1 7 2 8 3 9 0 10 4 The mean score on this test is: 6.5 The median score on this test is: 7.5

  2. Math

    The College Board reported the following mean scores for the three parts of the Scholastic Aptitude Test (SAT) (The World Almanac, 2009): Assume that the population standard deviation on each part of the test is = 100. a. What is

  3. Math

    Using the frequency table below, find how many students received a score of 70 or better on a mathematics test. Score interval Frequency 50-59. 2 60-69 5 70-79 5 80-89 7 90-99 2 A. 19 B. 12 C.17 D.14 I chose B. 12 Correct me if

  4. Math

    The table below shows the scores of a group of students on a 10-point quiz. Test Score Frequency 3 1 4 1 5 2 6 3 7 1 8 1 9 1 10 4 The mean score on this test is: The median score on this test is:

  1. English

    Which sentence does not contain an intensive pronoun? A) I guess I will just take out the trash myself. B) While treating herself to lunch, Angie ran into an old friend. C) Tony himself made dinner last night even though he hates

  2. statistics

    5. Each year, a national achievement test is administered to 3rd graders. The test has a mean score of 100 and a standard deviation of 15. If Jane's z-score is 1.20, what was her score on the test?

  3. Algebra

    The score of Ragini in mathematic is 23 more than two third of a score in English if he score X marks in English what is her score in mathematics?

  4. statistics

    the admissions policy at a certain university requires that incoming students score in the upper 20% on a standardized test. if the mean score on the test is 510 and the standard deviation of the scores is 80, what is the minimum

  1. Measures of Central Tendency

    The table below shows the scores of a group of students on a 10-point quiz. Test Score Frequency 3 0 4 2 5 2 6 1 7 2 8 3 9 0 10 4 The mean score on this test is: The median score on this test is

  2. statistics

    Three students take equivalent stress tests. Which is the highest relative score? a. A score of 144 on a test with a mean of 128 and a standard deviation of 34. b. A score of 90 on a test with a mean of 86 and a standard deviation

  3. Psych

    If an iq test has high predictive validity, then a. a psychologist can accurately guess what score someone will get before he or she has started the test. b. students who get good score on the test will get even better scores if

  4. Math

    On a test whose distribution is approximately normal with a mean of 50 and a standard deviation of 10, the results for three students were reported as follows: Student Opie has a T-score of 60. Student Paul has a z-score of -1.00.

You can view more similar questions or ask a new question.