Answer:
10x+y
Step-by-step explanation:
Answer:
no
Step-by-step explanation:
14:8 = 14/8 = 7/4
28:10 = 28/10 = 14/5
Since the fractions are not equal, it is not a proportion.
Answer: no
Try writing out the inequality.
$21<-⅔(4x+4)$ and see where u can go from there
The number of hours it will take both the surveyor and apprentice to complete the same job is 15/56 hours.
<h3>Rate of work</h3>
- Hours it takes the experienced surveyor = 7 hours
- Surveyors rate of work = 1/7
- Hours it takes the apprentice = 8 hours
- Apprentice rate of work = 1/8
If the two work together;
Time taken for both to complete the task = Surveyors rate of work + Apprentice rate of work
= 1/8 + 1/7
= (7+8) / 56
= 15/56 hours
Therefore, the number of hours it will take both the surveyor and apprentice to complete the same job is 15/56 hours.
Learn more about rate of work:
brainly.com/question/25870256
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Answer:
Nadia is incorrect, please check explanations for the correction to her work
Step-by-step explanation:
Here, we want to validate the wok of Nadia
Let the number be n
5 times the number is 5 * n = 5n
Difference between 5n and 3 less than twice the number
3 less than twice the number is 2n-3
So it should be 2n-3 ;
The solution is thus;
5n - (2n-3) = 18
5n - 2n + 3 = 18
3n + 3 = 18
3n = 18-3
3n = 15
n = 15/3
n = 5
