Answer:
a
Step-by-step explanation:
both sides being negative turns it positive
This problem is an example of Ratio and Proportion.
We will write the problem into the form miles / hours = miles / hours
On the first survey of the surveyor, he took 1 3/5 miles for 1 1/4 hours.
Therefore, we can write this as 1 3/5 / 1 1/4 or 8/5 / 5/4
And on his second survey, it ask how long he will take for 1 mile.
So, we will let x for the number of hours he took the survey for 1 mile.
Therefore we can write this as 1 / x.
We will now equate the two surveys.
![\frac{8}{5}](https://tex.z-dn.net/?f=%20%5Cfrac%7B8%7D%7B5%7D%20)
×
![\frac{4}{5}](https://tex.z-dn.net/?f=%20%5Cfrac%7B4%7D%7B5%7D%20)
= 1 / x
![\frac{32}{25} = \frac{1}{x}](https://tex.z-dn.net/?f=%20%5Cfrac%7B32%7D%7B25%7D%20%3D%20%20%5Cfrac%7B1%7D%7Bx%7D%20)
we'll do cross multiplication, and it will become
32x = 25
x = 25 / 32
Therefore, it will take him 25 / 32 hours to complete a survey for 1 mile.
Answer:
2
Step-by-step explanation:
01=1
and.1+1=2 that is sum of 1 &1
Answer:
t = 4
Step-by-step explanation:
you have -8 and twelve you equation is x -12 = -8 so we just have to flip the equation around to make it x = 12 -8 which is easy . You just have to make sure you don't get mixed up while flipping the signs.