sanji2432 sanji2432
  • 22-10-2020
  • Mathematics
contestada

Use the number line below, where RS=9y+2, ST=2y+6, and RT= 52

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abidemiokin
abidemiokin abidemiokin
  • 22-10-2020

Answer:

Step-by-step explanation:

Given

RS=9y+2, ST=2y+6, and RT= 52

The addition postulate is true for the number line.

RS+ST = RT

Substitute

9y+2+(2y+6) = 52

9y+2y+8 = 52

11y = 52-8

11y = 44

y = 44/11

y = 4

Find RS

RS = 9y+2

RS = 9(4)+2

RS = 36+2

RS = 38

Find ST:

ST = 2y+6

ST = 2(4)+6

ST = 8+6

ST = 14

Hence y = 4, RS = 38 and ST = 14

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