algebra

posted by .

please translate
“A student scored five points more on the second quiz than he did the first. He scored eleven points lower on the third quiz than he did the first. If the average of the three quiz scores is 70, what was his score on the first quiz?”

  • algebra -

    Let x = the score on the first test.

    x + x + 5 + x - 11 = 3(70)
    3x - 6 = 210
    3x = 216
    x = ?

  • algebra -

    x=213

  • algebra -

    x+72

  • algebra -

    x=72

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. algebra

    each week, mandy's algebra teacher gives a 10 point math quiz. after 5 weeks, mandy has earned a total of 36 points for an average of 7.2 points per quiz. she would like to raise her average to 9 points. on how many quizzes must she …
  2. algebra

    Use the five steps for problem solving to answer the following question. Please show all of your work. The average of two quiz scores is 81. If one quiz score is six more than the other quiz score, what are the two quiz scores?
  3. Algebra

    Jake scored x points in the first basketball game. He scored 2 fewer points in the next game. His teammate, Jack, scored 2y points in the first game and 4 more than twice as many points in the next game. Write and simplify an expression …
  4. Math

    Jillian must average at least 90 on two quiz scores before she can move to the next skill level. Jillian got a 92 on her first quiz. What scores could Jillian get on her second quiz in order to move to the next skill level?
  5. math

    Tim wants his mean (average) quiz score in history class to be 90. His first 3 quiz scores were 86, 92, and 94. What score should he make on the 4th quiz in order to have a mean (average) quiz score of exactly 90?
  6. Algebra 1

    A student scored 78 and 92 on his first two quizzes. Use a compound inequality to find the possible values for a third quiz score that would give him an average between 80 and 85, inclusive. (1 point) 78<=x<=92 75<=x<=85*** …
  7. Statistic

    There are two independent multiple-choice quizzes where quiz 1 has eight questions and quiz 2 has 15 questions. Each question in the first quiz has four choices and each question in the second quiz has five choices. Suppose a student …
  8. statistic and probability

    There are two independent multiple-choice quizzes where quiz 1 has eight questions and quiz 2 has 15 questions. Each question in the first quiz has four choices and each question in the second quiz has five choices. Suppose a student …
  9. math 4th grade

    At the end of their study of the kinds of electricity, mrs.clark class compleated quiz, there were 26 students , 6 of them scored 100, 4 scored 90, 3 scored 80 and rest of them 80. What was the average quiz score for the quiz Can anybody …
  10. Algebra

    A student scored 81 and 95 on her first two quizzes. Write and solve a compound inequality to find the possible values for a third quiz score that would give her an average between 85 and 90.

More Similar Questions