One number is 7 times a first number. A third number is 100 more than the first number. If the sum of the three numbers is 748

Question

4 years ago

14

, find the numbers.

1 answer:

baherus [9] · Answer 1 · 2021-12-01T13:59:03+03:00

Answer:

72, 504, 172

Step-by-step explanation:

Let the unknown number be denoted as "x"

The second number = 7x

And the third number = 100 + x

(x) + (7x) + (100 + x) = 748

x + 7x + x + 100 = 748

9x + 100 = 748

9x = 748- 100

9x = 648

x = 648/9

x = 72

The first number = 72

The second number = 7x = 7 × 72 = 504

The third number = 100 + x = 100 + 72 = 172

One number is 7 times a first number. A third number is 100 more than the first number. If the sum of the three numbers is 748 ​