Answer:
![5b=2r](https://tex.z-dn.net/?f=5b%3D2r)
Step-by-step explanation:
Given: For every 45 pieces of blue yarn Sofia uses, she uses 18 pieces of red yarn
To find: equation that can be used to represent the proportional relationship between the amount of blue yarn, b, and red yard, r
Solution:
As for every 45 pieces of blue yarn Sofia uses, she uses 18 pieces of red yarn,
number of pieces of blue yarn / number of pieces of red yarn = ![\frac{18}{45}=\frac{2}{5}](https://tex.z-dn.net/?f=%5Cfrac%7B18%7D%7B45%7D%3D%5Cfrac%7B2%7D%7B5%7D)
![\frac{b}{r}=\frac{2}{5}\\ 5b=2r](https://tex.z-dn.net/?f=%5Cfrac%7Bb%7D%7Br%7D%3D%5Cfrac%7B2%7D%7B5%7D%5C%5C%20%205b%3D2r)
Therefore,
equation that can be used to represent the proportional relationship between the amount of blue yarn, b, and red yard, r is ![5b=2r](https://tex.z-dn.net/?f=5b%3D2r)
Ok so I know the answere it is -11
Answer:
n=8
Step-by-step explanation:
2(5-6n)=10n-166
1) Distribute the 2 to 5 and -6n:
10-12n=10n-166
2) Add 166 to both sides:
176-12n=10n
3) Add 12n to both sides:
176=22n
4) Divide both sides by 22:
n=8
It is C I did it sooooo yea