Question

one number is one-fourth of another. Their sum is 90. Determine the number​

Answer 1

Answer: the number is 72 Step-by-step explanation:

let the number be x

x+1/4x=90

x+x/4=90

4x+x/4=90

5x/4=90

5x=360

x=360/5

x=72

the number is 72

Answer 2

Answer:

The number is 18

Step-by-step explanation:

if the smaller is x,

then 4x+x=90

or, 5x=90

or,x=18