The ratio of girls to boys in liza’s classroom is 5
5
to 4
4
.

how many girls are in her classroom if there is a total of 27
27
stud

15 girls

Step-by-step explanation:

Let

x ----> the number of girls in Liza's classroom

y ----> the number of boys in Liza's classroom

we know that

-----> equation A

----> equation B

solve the system by substitution

substitute equation A in equation B

solve for y

Find the value of x

a

step-by-step explanation:

when a number is between two straight lines it means the absolute value.

to find absolute value you need to know how many numbers is that number away from 0.

when finding absolute value the number will always come out positive

so absolute value of -3 is 3

absolute value of 3/2 is 3/2

absolute value of -2 is 2

absolute value of 3.5 is 3.5

absolute value of -1 is 1

now put these numbers in order:

a)   |-1|, |3/2|, |-2|, |-3|, |3.5|