Question

if 20 is added to the eight time of a certain number , is the result is 10 less than ten times the numbre , find the number. ​

Answer 1

Answer:

The number is 15.

Step-by-step explanation:

Let the number be x.

Then, according to the question, 8x + 20 = 10x - 10

Then, 2x = 30

and x= 15.

Answer 2

✬ Number = 15✬

Step-by-step explanation:

Given:

• 20 is added to the eight times a number.
• The result after adding is 10 less than ten times the number.

To Find:

• What is that number ?

Solution: Let the number be x. Therefore,

➼ 8 times of number = 8x

➼ Adding 20 = (8x + 20)

The result after adding 20 is

➼ Result = 10 less than ten times of number.

➼ Result = (10x – 10)

A/q

$\implies{\rm }$ 8x + 20 = 10x – 10

$\implies{\rm }$ 20 + 10 = 10x – 8x

$\implies{\rm }$ 30 = 2x

$\implies{\rm }$ 30/2 = x

$\implies{\rm }$ 15 = x

Hence, the number is 15.

__________________

★ Verification ★

➼ 8(15) + 20 = 10(15) – 10

➼ 120 + 20 = 150 – 10

➼ 140 = 140

$\large\boxed{\texttt{Verified}}$