Asked by Anonymous
alan scored a total of 14 points for answering all 15 questions on a math quiz for every correctly answered question alan got 2 points for every wrong ahe lost 2 points how many questions did he answer correclty
Answers
Answered by
Steve
all correct would be 30
he's 16 points shy, so he must have missed 16/4 = 4.
11 right = 22
4 wrong = -8
22-8=14
he's 16 points shy, so he must have missed 16/4 = 4.
11 right = 22
4 wrong = -8
22-8=14
Answered by
lARRY
X - #correct
Y - # wrong
X+Y = 15
2*X-2*Y = 14
X-Y = 7
X+Y =15
2X=22
X=11
Y - # wrong
X+Y = 15
2*X-2*Y = 14
X-Y = 7
X+Y =15
2X=22
X=11
Answered by
Kenzee
Love it keep working
Answered by
Kenzee
Good job keep on working
Answered by
Victoria Saigal
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