Question

If 100 added to three times a number, the result is 400.What is the number?

Answer 1

Answer:

When five is added to three more than a certain number, the result is 19. What is the number ... You start by writing out what was asked, (Add 25 to 3 times of a number [3X], and the result in 70).

Step-by-step explanation:

Answer 2

Let the number be x

According to Question

$\\\sf~~~~~\implies 100 + 3x = 400$

• Subtracting both sides by 100

$\\\sf~~~~~\implies \cancel{100 }-\cancel{100 }+ 3x = 400 - 100$

$\\\sf~~~~~\implies 3x = 300$

• Dividing both sides by 3

$\\\sf~~~~~\implies \dfrac{ \cancel{3}x}{\cancel{3}} = \cfrac{\cancel{3} {}^{1} 00}{\cancel{3}}$

$\\\sf~~~~~\implies x = 100$

• 100 is the number in which 100 is added to three times it's self to result 400 .