Question

4. The square root of 5 less than twice a number is 7. Find the number.

Answer 1

3.5

Explanation:

we can divide that

• the square root of 5
• less than
• twice a number is 7

as you see the first one is really easy

`√(5)`

the second one is < because it points to the lower number

the third one we have

twice a number is 7

let's say x is the number

so twice x is 7

twice means 2 times

so 2 times x is 7

`2*x=7\\\\(1)/(2)*2x=(1)/(2)*7\\\\x=3.5`

so the number is 3.5