Answer: 2 hours
Step-by-step explanation: Divide 175 (distance traveled) by 3.5 (time traveled). The answer is 50 (km per hr). Divide 100 (km) by 50 (km per hr). The answer is 2 hours.
S=(n/2)(A+t)
x2 x2
2S=n(A+t)
--- --------
n n
2S n(A+t)
---=---------
n n
2S
---=A+t
n
.....2S
A=----- -t
......n
On the number line it will be -4 because the water here is 0 and -3 + (-2) = -5
∴ the number in between is -4.
<span>The difference between two positive integer is 4 and the difference between their reciprocal is 1/24. Find both integers by using quadratic equation 3 </span>
