Answer:
The time it will take Kalin will be 2h 33m
Step-by-step explanation:
First we will transform the numbers to work more comfortable
d = distance
v = velocity
v = 3 2/3 miles per hour = 3.33 mi/h
d = 4 1/4 milles = 4.25 mi
As the time it takes to go to the beach and back asks us, we have to do the distance 2 times
d = 4.25 mi * 2
d = 8.5 mi
To calculate the time it takes, we simply have to divide the distance by the velocity
t = d/v
t = 8.5 (mi) / 3.33(mi/h)
t = 2.55h
if we also want to express the minutes we can divide after the point .55 by 100 and multiply it by 60
(55/100)*60 = 33
t = 2h 33m
The time it will take Kalin will be 2h 33m
The answer is g. U need to find the domain to be able to solve all your other steps.
Answer:
8x-y=19 is already in your Ax+By=C form
For your second one you need to switch your x and y around so
3x+y=7 gives you your Ax+By=C form
Now you want to use the system of elimination to solve the system of equations
So when you take 8x-y=19 you then add 3x+y=7
8x+3x= 11x
-y+y=0 (crosses out... why it's called elimination)
19+7=26
Your equation is now 11x=26
You then divide both sides by 11 to get
x=26/11
(Hope this helps ya ;)
You need to 8 + 4 = 12 and take the half of 12 and start at -4 and count up 6
