Since addition is commutative, she can add anyway she wants.
(17+51)+(10+13)
(51+10)+(17+13)
Hope this helps.
26.04 I think I am not really sure what the question is asking
Answer:
5%
Step-by-step explanation:
so basically we know in 3 years she spent 390 dollars
so 390 divided by 3 is 130
so all we need to do is find this:
130 is what percent of 2600
so the final answer is 5%
Okay so first let's find out our other angle. Since this is a triangle, it has 180°. We have two measurements already, 53° and 90°. To find the other angle simply add the angles and subtract by 180.
![53 + 90 = 143](https://tex.z-dn.net/?f=53%20%2B%2090%20%3D%20143)
![180 - 143 = 37](https://tex.z-dn.net/?f=180%20-%20143%20%3D%2037)
So our missing angle (D) is 37°.
To solve for our x we will be using the sine ratio and cosine ratio.
![\sin(x) = \frac{opposite}{hypotenuse}](https://tex.z-dn.net/?f=%20%5Csin%28x%29%20%20%3D%20%20%5Cfrac%7Bopposite%7D%7Bhypotenuse%7D%20)
Let's plug in our numbers,
sin(53°) = x over 27
X ≈ 21.56
~~
I hope that helps you out !!
Any more questions, please feel free to ask me and I will gladly help you out !!
~Zoey