Answer: 56 times.
Step-by-step explanation:
394/7 = 56.3
56 * 7 = 392
392 + 7 = 399
399 is more than 394, therefore the answer is 56.
Answer:
t = 0.7
Step-by-step explanation:
s = k/t where 'k' is the constant of variation
given: 0.5 = k/7 so k = 3.5
5 = 3.5/t
5t = 3.5
t = 0.7
Answer:
A= -1
Step-by-step explanation:
Changing the subject of an equation involves solving for another variable in the equation
The equation of t is 
<h3>How to change the subject of the equation</h3>
The equation is given as:
![N=\sqrt[2]{\frac{y_i-y_o}{t^2}}](https://tex.z-dn.net/?f=N%3D%5Csqrt%5B2%5D%7B%5Cfrac%7By_i-y_o%7D%7Bt%5E2%7D%7D)
Rewrite the equation as:

Evaluate the square root of t^2

Multiply both sides by t

Make t the subject, in the above equation

Hence, the equation of t is 
Read more about subject of formula at:
brainly.com/question/657646