768 ÷ 32 = 24
32 × 24 = 768
I hope this helps you!!
please make my answer brainliest to help me out!!!!
Thanks!!
Answer:
The speed on motorboat is 20 mph
Step-by-step explanation:
here, we want to find the speed on the motorboat
if he has a speed of x mph on the motor boat, his speed on the ski will be (x + 10) mph
The total hours is 4 hours
Mathematically; speed = distance/time
Time on ski is 27/x+ 10
Time on motor boat is 62/x
The addition of both is 4
Thus;
27/(x + 10) + 62/x = 4
27(x) + 62(x + 10) = 4(x)(x + 10)
27x + 62x + 620 = 4(x^2 + 10x)
89x + 620 = 4x^2 + 40x
4x^2 -49x-620 = 0
using the quadratic formula;
{-b ± √(b^2-4ac)}/2a
where a = 4, b = -49 and c = -620
= 49 ± √(-49)^2-4(4)(-620)/8
So we have
49+ 111/8 or 49-111/8
Speed cannot be negative
(49 + 111)/8
= 20 mph
He would only be able to make 6 rows with 3/4 of another
50 x 2 =100 hours
1267/100= 12.67
$12.67 was raised per hour
Answer:
B
Step-by-step explanation:
I would say B because if only 30 people said water and there is 65 that said something then it would almost be half of what you started with
