Question

Use the number line below, where RS = 7y +5. ST = 3y +5, and RT = 70.

a. What is the value of y?

Answer 1

Explanation:

7y+5+3y+5=70

10y+10=70

10y=60

y=6

7(6)+5= 42+5= 47

3(6)+5= 18 + 5 =23

47+23= 70