Answer:
its 10 points...
Step-by-step explanation:
but b
Answer:
∠1=160° and ∠2=20°
Step-by-step explanation:
Let ∠1 = x
∠2 = y
as these two angles are supplementary their sum is 180
that x+y=180 ----(A)
Also given that ∠1 is 20 degree less than nine times the size of ∠2.
Hence
x=9y-20
putting value of x in A and solving for y
9y-20+y=180
10y=180+20
10y=200
y=10
Putting this y in A
x+10=180
x=160
Answer:
![\large\boxed{12.25=\dfrac{49}{4}}](https://tex.z-dn.net/?f=%5Clarge%5Cboxed%7B12.25%3D%5Cdfrac%7B49%7D%7B4%7D%7D)
Step-by-step explanation:
![12.\underbrace{25}_{2}=\dfrac{1225}{1\underbrace{00}_2}=\dfrac{1225:25}{100:25}=\dfrac{49}{4}\\\\12.25=12+0.25=12+\dfrac{25}{100}=12+\dfrac{25:25}{100:25}=12+\dfrac{1}{4}\\\\=\dfrac{12\cdot4}{4}+\dfrac{1}{4}=\dfrac{48+1}{4}=\dfrac{49}{4}](https://tex.z-dn.net/?f=12.%5Cunderbrace%7B25%7D_%7B2%7D%3D%5Cdfrac%7B1225%7D%7B1%5Cunderbrace%7B00%7D_2%7D%3D%5Cdfrac%7B1225%3A25%7D%7B100%3A25%7D%3D%5Cdfrac%7B49%7D%7B4%7D%5C%5C%5C%5C12.25%3D12%2B0.25%3D12%2B%5Cdfrac%7B25%7D%7B100%7D%3D12%2B%5Cdfrac%7B25%3A25%7D%7B100%3A25%7D%3D12%2B%5Cdfrac%7B1%7D%7B4%7D%5C%5C%5C%5C%3D%5Cdfrac%7B12%5Ccdot4%7D%7B4%7D%2B%5Cdfrac%7B1%7D%7B4%7D%3D%5Cdfrac%7B48%2B1%7D%7B4%7D%3D%5Cdfrac%7B49%7D%7B4%7D)
Answer:
8x+4
Step-by-step explanation:
4(2x+1)=8x+4
For this case we have that the cost of candies is given by:
![3.98 \frac {dollars} {pound}](https://tex.z-dn.net/?f=3.98%20%5Cfrac%20%7Bdollars%7D%20%7Bpound%7D)
If we have to:
c: Represents the cost of candy
p: Represents the number of pounds of candy
So, we can raise the following equation:
![c = 3.98p](https://tex.z-dn.net/?f=c%20%3D%203.98p)
Answer:
The equation is:![c = 3.98p](https://tex.z-dn.net/?f=c%20%3D%203.98p)
Option C