hayleywisor hayleywisor

26-03-2020
Mathematics

contestada

7. Which pair of ratios forms a proportion?
A. 6:16 and 9:25
B. 8:18 and 22:50
C. 9:21 and 15:36
D. 12:27 and 20:45

Respuesta :

thanosvegan thanosvegan

26-03-2020

Answer: D. 12:27 and 20:45

Step-by-step explanation: Cross multiply. A, B, and C don't equal each other, but when you cross multiply D (12 x 45 and 27 x 20) you get 540 and 540. So its D

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