Question

Use the number line below, where RS = 6y +3, ST = 4y +9, and RT = 72.

a. What is the value of y?
b. Find RS and ST.
a. What is the value of y?
y=(Type an integer or a decimal.)

Answer 1

a. 6y +3 +4y +9= 72

6y+4y+3+9=72

10y+12=72

10y=72-12

10y=60

10y/10= 60/10

y=6