Let the slower runners speed be X kilometers per hour.
Then the faster runners speed would be X+2 kilometers per hour.
The formula for distance is Speed times time.
The distance is given as 30 kilometers and time is given as 3 hours.
Since there are two runners you need to add the both of them together.
The equation becomes 30 = 3x + 3(x+2)
Now solve for x:
30 = 3x + 3(x+2)
Simplify:
30 = 3x + 3x +6
30 = 6x + 6
Subtract 6 from each side:
24 = 6x
Divide both sides by 6:
x = 24/6
x = 4
The slower runner ran at 4 kilometers per hour.
The faster runner ran at 4+2 = 6 kilometers per hour.
Answer:
134
5000
i think im right
Step-by-step explanation:
Answer:
$53.63
Step-by-step explanation:
The social security deduction is withheld at a standard rate of 6.2 percent.
If Kasey has a job that pays $865 per week.
The the amount withheld from each paycheck for social security can be calculated as:
= $865 × 6.2/100
= $865 × 0.062
= $53.63
we are given

we can see that
4a is in multiple in numerator
so, we can factor it out

now, we can cancel 4a
and we get
.............Answer