1. Z=-3
4. W=-1/3
5. M=12
6. K=65/3
I’m pretty sure the equation is 28-f=n
and the answer is 2.
Answer:
Step-by-step explanation:
The wording is a bit wonky, but
The value of the 5 in 35187 is 5000
Ten times that value is 10(5000)=50000
So in the number 50000, the 5 represents 10 times the value of 5 in 35187.
Answer:
8.5 m
Step-by-step explanation:
the volume of a cube is calculated via
length of side ³
620 = side length³
side length = 8.5 m
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)
