SOLUTION:
A math test has 25 problems. Some are worth 2 points, and some are worth 3 points. The test is worth 60 points total. Write and solve a system of equations to determine the numbe
Algebra.Com
Question 715764:
A math test has 25 problems. Some are worth 2 points, and some are worth 3 points. The test is worth 60 points total. Write and solve a system of equations to determine the number of 2-point problems and 3-point problems on the test.
Answer by checkley79(3341) (Show Source): You can put this solution on YOUR website!
X+Y=25
X=25-Y
2X+3Y=60
2(25-Y)+3Y=60
50-2Y+3Y=60
Y=60-50
Y=10 3 POINT QUESTIONS.
X+10=25
X=25-10
X=15 2 POINT QUESTIONS.
PROOF:
2*15+3*10=60
30+30=60
60=60
RELATED QUESTIONS
a math test has 25 problems. Some problems are worth 2 points and some are worth 3 points (answered by tommyt3rd)
A math test has 25 problems.Some problems are worth 2 points and some are worth 3 points... (answered by stanbon)
A biology test has 25 problems. some are worth 2 points,and some are worth 3 points. the... (answered by josmiceli)
Next week your math teacher is giving a chapter test worth 100 points. The test will... (answered by Theo)
A math test is worth 100 points and has 30 problems. Each problem is worth either 3... (answered by jim_thompson5910)
A math test is worth 100 points and has 30 problems. Each problem is worth either 3... (answered by MathLover1)
An Algebra I test contains 40 questions. Some of the questions are worth 4 points each,... (answered by ewatrrr)
an algebra 2 test contains 38 problems. Some of the problems are worth 2 points each... (answered by ankor@dixie-net.com)
Your teacher is giving a test worth 250 points. There are 68 questions. Some questions... (answered by robertb)