# math help

I need help solving this math problem, please:

Problem:
Angela's math test had 100 multiple-choice questions. Each correct answer was worth 1 point, each incorrect answer was worth -2 points, and skipped questions were worth 0 points. Angela answered an even number of questions, was unable to complete the entire test, and did answer some questions incorrectly. Her test score was an 88. How many questions did she answer correctly? How many questions did she answer incorrectly?

1. 👍 0
2. 👎 0
3. 👁 164
1. let the number of correct be x
let the number of incorrect be y

then x - 2y = 88

we know y>0, x<100, x+y < 100

how about y=1 then x = 90
y = 2 , then x = 92
y = 3 then x = 94

y = 4 then x = 96 but she missed some

so the three possible answers are:
90 correct, 1 incorrect
92 correct, 2 incorrect
94 correct, 3 incorrect

1. 👍 0
2. 👎 0
posted by Reiny
2. thank you!

1. 👍 0
2. 👎 0
posted by Patti

I just noticed it said, "she answered an even number of questions", I had read it as an even number of correct questions.

so the only possible answer is
92 correct, 2 incorrect

1. 👍 0
2. 👎 0
posted by Reiny

## Similar Questions

1. ### Math

I need help solving this math problem, please: Problem: Angela's math test had 100 multiple-choice questions. Each correct answer was worth 1 point, each incorrect answer was worth -2 points, and skipped questions were worth 0

asked by Patti on October 6, 2008
2. ### Math check 3

f(x) = 1/(x+7)+15/(x-8). Find all a for which f(a)=f(a+15). I understand this so far f(a)=f(a+15) 1/(7+a) + 15/(a-8) = 1/(a+22) + 15/(a+7) I have multiplied the LCD of (a-8)(a+7)(a+22)by both sides with no luck. This is a multiple

asked by Shawn on October 12, 2008
3. ### math

Please help me with this problem: Jhon missed 5 points out of 100 points on his math test. What decimal number represents the part of his math test he answered correctly? my answer is 0.95. my work: 100-5=095

asked by Anonymous on September 17, 2014
4. ### ENGLISH/MATH/SCIENCE HELP!

Is there any websites for teens to read short stories (or long), then you answer ONLY multiple choice questions, grade you, and to have a profile or something to see all of your grades if your making progress each time (to see if

asked by Laruen on March 9, 2013
5. ### math

What are the important variables in the problem below? A test is worth 50 points. Multiple-choice questions are worth 1 point, and short-answer questions are worth 3 points. If the test has 20 questions, how many multiple-choice

asked by aaron on September 28, 2015
6. ### English

1. He can not solve the math problem. 2. He cannot solve the math problem. 3. He can't solve the math problem. 4. He could not solve the math problem. 5. He couldnot solve the math problem. 6. He couldn't solve the math problem.

asked by rfvv on July 16, 2013
7. ### fractions

my teacher gave us some fraction problems for homework, but I'm confused about how to go about solving the problem. The problem is what is 2/4 of 8. Can you show me the steps so I can do the rest of the math problems? 2/4 reduces

8. ### Math

I need help solving the problem below. Chris answered 19 out of 25 questions correctly on a math test. What percent of the questions did she answer correctly? Is the answer 76% 19/25= 0.76

asked by Rachel on April 13, 2016
9. ### Math: is it? is it not?

Is this math problem hard? - There are 12 brothers living in a mansion. Six brothers are sitting in a rectangular kind of table. Six other brothers stood around them. They all have ten huge backpacks. Each backpack has 8 large

asked by Losa on September 24, 2013
10. ### statistics

A math test consists of 17 multiple choice questions, each with five possible answers (a, b, c, d, e), only one of which is correct. Assume that a student takes the test and randomly answers the questions. What is the probability

asked by anon on April 24, 2016

More Similar Questions