Answer: 41.86 miles/hour
Step-by-step explanation:
Use Distance = Speed*Time to find the two missing values with the data that is provided for those two cases [<em>in brackets</em>].
MPH MILES HOURS
50 20 [<em>0.4]</em>
[<em>40</em>] <u>70</u> <u>1.75</u>
Totals 90 miles 2.15 hours
Average = 90 miles/2.15 hours
41.86 mph
Answer:
34 km/h
Step-by-step explanation:
speed = distance/time
Distance = 17km
Time = 0.5 or 1/2 hours because it's 30 minutes between 17:15 to 17:45, and 30 minutes is a half of an hour and you want km over hours
So
speed = 17/0.5
speed = 34 km/h
- Let x be the percentage of p.
- Therefore,
![m\% \: \: of \: \: n = x\% \: \: of \: \: p \\ = > \frac{mn}{100} = \frac{px}{100} \\ = > mn = \frac{px}{100} \times 100 \\ = > mn = px \\ = > \frac{mn}{p} = x](https://tex.z-dn.net/?f=m%5C%25%20%5C%3A%20%20%5C%3A%20of%20%5C%3A%20%20%5C%3A%20n%20%3D%20x%5C%25%20%5C%3A%20%20%5C%3A%20of%20%5C%3A%20%20%5C%3A%20p%20%5C%5C%20%20%3D%20%20%3E%20%20%5Cfrac%7Bmn%7D%7B100%7D%20%20%3D%20%20%5Cfrac%7Bpx%7D%7B100%7D%20%20%5C%5C%20%20%3D%20%20%3E%20mn%20%3D%20%20%5Cfrac%7Bpx%7D%7B100%7D%20%20%5Ctimes%20100%20%5C%5C%20%20%3D%20%20%3E%20mn%20%3D%20px%20%5C%5C%20%20%3D%20%20%3E%20%20%5Cfrac%7Bmn%7D%7Bp%7D%20%20%3D%20x)
<u>Answer:</u>
<u>
</u>
Hope you could get an idea from here.
Doubt clarification - use comment section.
Question 4 is Choice A
Question 5 is Choice B
Question 6 is Choice C
Question 7 is Choice B
These are relatively simple it’s just understanding the relations of x and y values :)
Answer:
![x\leq 36](https://tex.z-dn.net/?f=x%5Cleq%2036)
The solution for
is all real numbers less that or equal to 36.
Step-by-step explanation:
Given expression:
![\frac{1}{2}x\leq18](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7Dx%5Cleq18)
To find the solution for ![x](https://tex.z-dn.net/?f=x)
Solution:
In order to solve for
, we will make sure to isolate the unknown variable
on left side alone by doing math operations on both sides of the inequality.
We have:
![\frac{1}{2}x\leq18](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7Dx%5Cleq18)
Multiplying both sides by 2.
![2.\frac{1}{2}x\leq18\times 2](https://tex.z-dn.net/?f=2.%5Cfrac%7B1%7D%7B2%7Dx%5Cleq18%5Ctimes%202)
The 2 on left side will cancel each other leaving
alone.
Thus, we have:
![x\leq 36](https://tex.z-dn.net/?f=x%5Cleq%2036)
Thus, solution for
is all real numbers less that or equal to 36.