Question

2.5 : 4= n : 8 thanks

Answer 1

5:8

Explanation:

The ratio is 4/2.5 which is 1.6

So 8/n = 1.6 or n = 8/1.6 = 5

An easier way is to just note that 8 is 4 multiplied by 2 so just multiply 2.5 by 2 to get 5

Answer 2

n =5

Explanation:

Ratios

2.5 : 4

We need to get the second number to 8

4 * what = 8

2

We need to multiply both numbers by 2

2.5 *2 : 4*2

5 : 8

n =5