Identify any and all errors that marissa made in her steps. marissa should have only plotted the fractions on the number line. marissa should have used 30 as the common denominator. marissa should have listed the numbers from right to left after she plotted them on the number line. marissa should have used a common denominator of 30 and should have listed the numbers from right to left after she plotted them on the number line.

Marissa should have used 30 as the common denominator.

Step-by-step explanation:

Took the test

hello from mrbilldoesmath!

answer:

a(n) - a(n-1) -3

discussion:

this ones a bit interesting. given a(n) = 5 - 3n consider this:

a(n-1) = 5 - 3(n-1)

          = (5 - 3n) + 3             => but a(n) = 5 - 3n, the first term

          = a(n)   + 3                 => subtract 3 from both sides

a(n-1) -3 = a(n)  

or

a(n) - a(n-1) -3

you,

mrb

0.6, 3/5, and 6% are the 3 same portion.

but, when they're all changed to a decimal they would equal to 0.6.

hope this , good luck!