Answer:
24
Step-by-step explanation:
because 120 divided by 5 is 24
Answer:
3x-20
Step-by-step explanation:
I had this test yesterday and this was the correct answer
Answer:
Define F as fathers age and S as sons age right now.
Then now they are
(1) 3S = F
and six years ago they were
(2) 5*(S-6) = F-6
calculate 5*(S-6)
5S - 30 = F-6
Subtract left and right side by -F
Add 30 to left and right side
5S - F = 24
Put (2) 3S = F into the equation above
5S - 3S = 24
2S = 24
S = 12
insert result in (2) 3S = F
3*12 = F
36 = F
Step-by-step explanation:
So the son is 12 years, and the father is 36 years.
Using a system of equations, it is found that the trains will be side by side in 15 seconds.
<h3>What is a system of equations?</h3>
A system of equations is when two or more variables are related, and equations are built to find the values of each variable.
In this problem, the <em>equations </em>are:


They will be side-by-side when:

Hence:




The trains will be side by side in 15 seconds.
More can be learned about system of equations at brainly.com/question/24342899
-2 times 2 equals -4 and if you add them it equals 0