The soultion for the set is the second one
I know that’s a should be one of them
Answer:
The answer is <u><em>7</em></u>!
Step-by-step explanation:
(x-4) (x) = 21, x^2 - 4x = 21, x^2 - 4x - 21 = 0, (x - 7) (x + 3) = 0, x = 7 and -3; x can't be negative so the answer is 7!
x = 7 and x - 4 (other side) = 3
24.9 miles/hour = 24.9/60 miles/minute = .415 miles/minute
<span>distance = speed * time </span>
<span>= .415 * 30 = 12.45 miles</span>
