Let x be the unknown number
2x +7 = 39
2x+7-7 = 39-7
2x = 32
2x/2 = 32/2
x=16
You use the balance method to solve. First, you cancel the +7 by subtracting the 7 ON BOTH SIDES to balance the equation.. After that, you are left with 2x, where you will need to isolate the x by dividing by 2 ON BOTH SIDES to balance it.
Hope this helps
Answer:
Option B. 5.01 units
Step-by-step explanation:
we know that
Applying the law of sines
![\frac{c}{sin(C)}=\frac{b}{sin(B)}](https://tex.z-dn.net/?f=%5Cfrac%7Bc%7D%7Bsin%28C%29%7D%3D%5Cfrac%7Bb%7D%7Bsin%28B%29%7D)
we have
![c=AB=3.61\ units\\C=41.82^o\\B=67.62^o\\b=AC](https://tex.z-dn.net/?f=c%3DAB%3D3.61%5C%20units%5C%5CC%3D41.82%5Eo%5C%5CB%3D67.62%5Eo%5C%5Cb%3DAC)
substitute the given values
![\frac{3.61}{sin(41.82^o)}=\frac{AC}{sin(67.62^o)}](https://tex.z-dn.net/?f=%5Cfrac%7B3.61%7D%7Bsin%2841.82%5Eo%29%7D%3D%5Cfrac%7BAC%7D%7Bsin%2867.62%5Eo%29%7D)
![AC=\frac{3.61}{sin(41.82^o)}=sin(67.62^o)](https://tex.z-dn.net/?f=AC%3D%5Cfrac%7B3.61%7D%7Bsin%2841.82%5Eo%29%7D%3Dsin%2867.62%5Eo%29)
![AC=5.01\ units](https://tex.z-dn.net/?f=AC%3D5.01%5C%20units)
Answer:
<h3> -5n = 1 ⇒
n = -¹/₅</h3><h3> n+15 = (-10) ⇒ n = 25</h3><h3> n/5 = -1/5 ⇒ n = -1</h3><h3> n-13= -12 ⇒ n = 1</h3>
Step-by-step explanation:
-5n = 1
÷(-5) ÷(-5)
n = -¹/₅
n + 15 = (-10)
-15 -15
n = -25
n/5 = -1/5
×5 ×5
n = -1
n - 13 = -12
+13 +13
n = 1
Answer:
1:11=11:121
5:2:1=35:14:7
1.5:1.25:2.4=6:5:9.6
Step-by-step explanation:
x/11=11/121 so x equals 1
5/2=x/14 so x equals 35
1.5/x=6/5 so x equals 1.25
1.25:2.4=5/x so x equals 9.6
Answer: -35/44
Step-by-step explanation: To multiply these two fractions together, simply multiply across the numerators and multiply across the denominators and remember a negative times a positive is a negative.
So our answer is -105/132.
To reduce our fraction divide both top and bottom by 3 to get -35/44.
Image is also provided.