x/N=.8
(x-2)/N=.66666
x=.8N
x-2=.6666N
.8N-2=.6666N
.13333N=2
N=15
so there were fifteen questions on the test, and .8N=12
divanna scored 67% on her test. IF she had paid closer attention to signs, she would have had 2 more problems right and would have scored 80%. write the expression for how many problems in all she would have answered correctly
1 answer
1 answer