If r = 24 and t = 6, what is the value of the following expression? r + 42 ÷ t · 3

79/3

Step-by-step explanation:

Evaluate r + 42/(t 3) where r = 24 and t = 6:

r + 42/(3 t) = 42/(6×3) + 24

42/6 = (6×7)/6 = 7:

7/3 + 24

Put 7/3 + 24 over the common denominator 3. 7/3 + 24 = (3×24)/3 + 7/3:

(3×24)/3 + 7/3

3×24 = 72:

72/3 + 7/3

72/3 + 7/3 = (72 + 7)/3:

(72 + 7)/3

72 + 7 = 79:

 79/3

21

step-by-step explanation: