Question

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

Answer 1

Answer:

3.5

Step-by-step 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

$\sqrt{5}$

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

$2*x=7\\\\\frac{1}{2}*2x=\frac{1}{2}*7\\\\x=3.5$

so the number is 3.5