The sum of two numbers is 21. the secound number is six times the first number. work out the two numbers?

Question

asked Mar 9, 2021 205k views

1 Answer

Piotr Jurkiewicz · Answer 1 · 2021-03-14T07:57:02+0000

The numbers are 3 and 18

Explanation:

Step 1: Given details are sum of numbers = 21, let the numbers be x and y. Form equations out of the given details.

⇒ x + y = 21 ---- (1)

⇒ y = 6x --------- (2)

Step 2: Substitute (2) in (1)

⇒ x + 6x = 21

⇒7x = 21

⇒x = 3

⇒ y = 6 × 3

⇒ y = 18