The answer is 110 because if you multiply 8•16=128 and 18 cars are used, you subtract 128-18 which is 110.
Answer:
7
Step-by-step explanation:
6.7 rounds up to 7
Answer:
Step-by-step explanation:
Let he speed of the boat on the lake is x.
<u>Considering the speed of the current it will take him:</u>
- 22.5/(x + 6) + 22.5/(x - 6) = 9
- 2.5 / (x + 6) + 2.5 / (x - 6) = 1
- 2.5(x - 6 + x + 6) = (x + 6)(x - 6)
- 2.5*2x = x² - 36
- x² - 5x - 36 = 0
- x = (5 ± √(5² + 4*36))/2 = (5 ± 13) / 2
- x = (5 + 13)/2 = 9 mph (negative root is discarded as the speed should be positive)
The answer is below what the dude said
Answer:
<em>m = - </em>
Step-by-step explanation:
( 
, 
)
( 
, 
)
m = 
~~~~~~~~~
( 9 , - 5 )
( 1 , - 1 )
<em>m </em>= ( - 1 - ( - 5 ) ) / ( 1 - 9 ) <em>= - </em>
