For one chemistry test, Joan had to answer 40 questions. Of these 40 questions, joan answered 36 of them correctly. What percent did joan get on her chemistry test?

The answer to your question is 90%

Step-by-step explanation:

Data

total number of questions = 40

total number of questions answered = 36

percent = ?

Process

Let 40 question be the 100% and use proportions and cross multiplication to solve this problem

                     40 questions 100%

                     36 questions  x

                     x = (36 x 100)/40

                    x = 90 %

you should at least use a calculater

step-by-step explanation:

i think it's ф or x=6,-6

step-by-step explanation:

-x^2=-36

x^2=-36

ф

or

if you mean by : -(x^2)=-36

it'll be: x^2=36

x=6,x=-6

hope it'll ! have a good day!

you for asking!