HaiseandSasaki HaiseandSasaki

11-12-2018
Mathematics

contestada

What is the missing numerator?

2/7 = n/21

A. 3
B. 5
C. 6
D. 8

Respuesta :

wegnerkolmp2741o wegnerkolmp2741o

11-12-2018

Answer:

C. 6

Step-by-step explanation:

2 n

-------- = -------------

7 21

We can use cross products to solve this.

2 * 21 = 7 * n

42 = 7n

Divide each side by 7

42/7 = 7n/7

6 =n

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Ihateboysthataremean Ihateboysthataremean

11-12-2018

C because 3 x 7 is 21. so you have to do it to the top too.

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