You can set up a proportion that looks like 3/7 = x/21. X being the number that you are trying to find. Seven goes into 21 three times. So multiply 3 also by that 3 to get 9. So three sevenths of twenty-one is 9.
Answer:
c
i think
Step-by-step explanation:
Answer:
So roughly c x c = b/100
5 x 5 x 100 = $2500
Step-by-step explanation:
Lets say c = 5 and b = 1
= 5c =100c/5c x b
= 20c x b
We can also show
= 20c x b =5c
c = 20c/5c x b = 5c
1/20 x 5c = 5c
b=1
One example is 20% = 0.20 x 500 = 100c
= 7.12c = 7c
1= 100%
100 x 71.042 = 710.42 weekly pay. emergency tax 142 = 568
100 x 71.042 = 710.42 weekly pay, normal tax 15% 142.084 =107
710-107 = 603 a week
4.3/7 x 603/7 = 86.1428571429 x 30 = 2584.29
Answer: 4n -7
Sam has 4 times than Declan so it would 4n. Amaya has fewer so then you would add the -7 and the equation you get is 4n - 7.