The amount of time required to travel a certain distance is equal to quotient of distance and speed. We let x be the speed of Terry and Mark's will be x+2. The equation that would best represent the scenario is,
15/x = 21/(x+2)
The value of x is 5. Thus, Mark's speed is 7 mph.
It is basically 22 x 4 or the other way around 4 x 24 of which equals: 88
Answer:
x=2
x=-5
Step-by-step explanation:
1
Move terms to the left side
2
Subtract the numbers
3
Use the sum-product pattern
4
Factor
5
Create two separate equations
6
Solve
Answer:
-(33+110z)/10z
Step-by-step explanation:
(-7/2z +4)+(1/5z -15)
from BODMAS, solving the one in the bracket
First(-7/2z +4)+(1/5z -15)
Find the Lcm
[-7/2z +4] +[1/5z -15]
(7+8z)/2z +(1-75z)/5z
find the Lcm which is 10z
[5(-7+8z) + 2(1-75z)]/10z
[(-35+40z)+(2-150z)]10z
(-35+2+40z-150z)/10z
(-33-110z)/10z
-(33+110z)/10z
Answer: 50
Step-by-step explanation:
Substitute 3 for x:
= 20(3)-10
= 50
