posted by .

1. on 3 tests, a student scored a total of 258 points. if the student improved his performance on each test by 5 points, what was the score on each test

a. 81,86,91
b. 80,85,90
c. 75,80,85
d. 70,75,80
is the correct answer A.

2. an item costs x dollars. the tax rate is 5% of the cost of the item, or 0.05x. write and simplify an expression to find the total cost of the item with tax

my answer is: x+ 0.05

  • math ( CHECK MY WORK) -

    1. Right

    2. Right

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. college algebra

    Sally took four tests in science class. On each successive test, her score improved by 3 points. If her mean score was 69.5%, what did she score on the first test?
  2. Math

    A student scored 65, 80, 74 on the first three tests during the term. What does the student need to score on the fourth test to ensure and an average score that is above 75?
  3. algebra

    help me please... The expression for figuring a student's average test score is (p/t), where p is the total points earned on all the tests, and the t is the number of tests. find a student's average when 623 points are earned on 7 …
  4. Statistics- Math

    One student scored 54 on a math test for which the mean score was 50.5 and the standard deviation was 3.2. Another student scored 80 on a chemistry test for which the mean score was 75.2 and the standard deviation was 5.2. Which student …
  5. statistics

    A student scored 84 points on a test where the mean score was 79 and the standard deviation was 4. Find the student's z score, rounded to 2 decimal places
  6. Math

    9 students in a group found that their mean score was 86 for the first math test. On the next test, each student in the group scored 7 points higher than on the first text. What was their mean score for the two tests?
  7. algebra

    : a student scored 73 out of 100 on a test. If the maximum score on the next text is also 100 points, what score does the student need to maintain an average of 81?
  8. stats

    If a student scored 75 points on a test where the mean score was 83.5 and the standard deviation was 3.1. The student's z score is ________.
  9. Math CSET

    A student scores 96 on a test. The class average is 84, with a standard deviation of 4 points. What percentage of the class scored below this student?
  10. Math

    Henry took five tests. His average score was 57 points. He scored at least 50 points on each test. There were 100 points possible on each test. What is the highest score that Henry could have earned on any of the five tests?

More Similar Questions