Question

The answer should be 6.125, right?

7/n = 8/7
49 = 8x
49/8 = 6.125

Answer 1

Proportions

The most basic definition of proportions is that they're just equivalent fractions. For proportions, the following holds true:

`\sf{(a)/(b)=(c)/(d)}`

To solve proportions, we cross - multiply,

Let's try applying this skill with this problem:

`\sf{(7)/(n)=(8)/(7)}`

Multiply 7 times 7, and n times 8:

`\sf{49=8n}`

Divide each side by 8:

`\sf{n=6.125}`

Hence, n = 6.125, or 6.13 if it's rounded to the nearest tenth.

`\rule{350}{4}`

Answer 2

the value of n = 6,125

`(7)/(n) =(8)/(7)`

7×7=8×n

49=8n

n=49/8=6,125

Explanation: