Answer:
It will take 8 hours for Frank and Mary to get to the beach
Step-by-step explanation:
Step 1: Give expression for calculating
d=s×t
where;
d=distance traveled i miles
s=speed in miles per hour
t=time in hours
in our case;
d=520 miles
s=65 miles per hour
t=unknown
Step 2: Solve for the unknown, t
In order to solve for t, the expressions can be rearranged as follows ;
t=d/s
replacing values for d and s;
t=520/65
t=8 hours
It will take 8 hours for Frank and Mary to get to the beach
Answer:
y=3x+1
Step-by-step explanation:
if im correct you are working on elimination, so you pretty much sub. so the difference between -2 and 3 is positive 1; the difference between 4x and x is 3x
are you working on elimination?
Answer:
Look below
Step-by-step explanation:
Part A: Equation would be in the y=mx+b format. m, or the slope, would be the cost that varies depending on the number of things that happen so m=3.25. b would be the fix cost so it is 15 so the equation ends up being y=$3.25x + $15.
Part B: Initial value is 15 since it is the fix cost, and 3.25 is the rate of change since it added as the number of rides increase.
Part 3: To solve this you substitute 7 into x so y=$3.25(7) + $15 = $37.75
I hope this explains it well.
Answer:
x = 3, x = 15, x = 12, x = 1
Hope this helps :)
Step-by-step explanation:
1.) 4x - 1 = 2x + 5
+1 +1
4x = 2x + 6
-2x -2x
2x = 6
x = 3
2.) 3x - 5 = 2x + 10
+5 +5
3x = 2x + 15
-2x -2x
x = 15
3.) 4x + 2 + 30 = 8 + 6x
4x + 32 = 8 + 6x
-8 -8
4x + 24 = 6x
-4x -4x
24 = 2x
x = 12
4.) 4( x - 1) + 5 = 2x + 3
4x -4 + 5 = 2x + 3
4x + 1 = 2x + 3
-1 -1
4x = 2x + 2
-2x -2x
2x = 2
x = 1
4*2=8, 4-2=2, 2*9=18, 18+8= 26
26 is the answer
