Posted by Sharday on Friday, October 28, 2011 at 4:22am.
let x = number of multiple questions she got right.
then we set up the equation and solve for x:
(4-1)*7 + 3x = 78
21 + 3x = 78
3x = 57
x = 19
hope this helps~ :)
Related Questions
algebra - Pam scored 78 on a test that had 4 fill-in questions worth 7 points ...
Algebra - A history test is to have 20 questions in which some are multiple ...
math help - I need help solving this math problem, please: Problem: Angela's...
Math - I need help solving this math problem, please: Problem: Angela's math...
math - Mr. Noonan told Vic that his test had 38 problems worth a total of 100 ...
8th Grade Algebra - 1) An exam will have 20 questions worth a total of 100 ...
math - algebra in 8th your teacher is giving you a test worth 100 points ...
Math - if there are 145 test questions, and the mean of the test scores for a ...
Algebra - Jake scored x points in the first basketball game. He scored 2 fewer ...
Algebra - Your teacher is giving you a test worth 100 points containing 40 ...
For Further Reading