meldinola meldinola

30-03-2022
Mathematics

contestada

Which two expressions are equal given r=9?

a. r+20
b. 2×r+10
c. 4×r−10
e. 3×r+1

Respuesta :

princechimezirim096 princechimezirim096

30-03-2022

Answer:

2×r+10 and 3×r+1

Step-by-step explanation:

a. 9+20= 29

b. 2×9+10= 18+10 = 28

c. 4x9-10 = 36-10 =26

e. 3×9+1 = 27 +1 = 28

the correct answer are 2×r+10 and 3×r+1

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