Tracy got 36 problems correct on her math exam if she scored a 72%, how many questions were on the exam?

There were 50 questions on her exam.

To find this answer, first make the percentage a decimal by dividing 72 by 100. This will give you 0.72, which you divide into 36 (36 ÷ 0.72). Doing so reverses the percentage, and gives you the total amount of questions. Thus meaning your answer is 50.

I hope this helps!!

a - base

b - exponent

so,

answer:   35 % is the probability of a late departure or an early arrival.

step-by-step explanation:

let l represents the late departure and e represents the early departure.

then, according to the question,

p(l) = 12 %,   p(e) = 27 % and = 4 %

and, we have to find out,

but, we know that,

which is the required equation that will use to find the probability of a late departure or an early departure.

therefore,   the probability of a late departure or an early arrival =   35 %