Answer:
m<B: 56
Step-by-step explanation:
All triangles add up to 180
<B = x
x + 34 + 90 = 180
x + 124 = 180
x = 56
Answer:
Yes. -4 is the solution to the equation.
Explanation:
2 + 4(-4) = - 14
2 + (-16) = - 14
2 - 16 = - 14
- 14 = - 14
Answer:
Triangle BCA and Triangle KIJ are congruent by SAS rule
Let
x--------> the time in hours
y-------> the distance in miles
we know that
The speed is equal to
![Speed=\frac{distance}{time}](https://tex.z-dn.net/?f=Speed%3D%5Cfrac%7Bdistance%7D%7Btime%7D)
in this problem
![Speed=\frac{y}{x}](https://tex.z-dn.net/?f=Speed%3D%5Cfrac%7By%7D%7Bx%7D)
![y=(Speed)*x](https://tex.z-dn.net/?f=y%3D%28Speed%29%2Ax)
<u>Equation First Train</u>
![y1=70x](https://tex.z-dn.net/?f=y1%3D70x)
<u>Equation Second Train</u>
![y2=80x](https://tex.z-dn.net/?f=y2%3D80x)
---------> equation ![1](https://tex.z-dn.net/?f=1)
Substitute the values of
and
in the equation ![1](https://tex.z-dn.net/?f=1)
![70x+80x=600](https://tex.z-dn.net/?f=70x%2B80x%3D600)
Solve for x
![150x=600](https://tex.z-dn.net/?f=150x%3D600)
![x=4\ hours](https://tex.z-dn.net/?f=x%3D4%5C%20hours)
therefore
<u>the answer is</u>
![4\ hours](https://tex.z-dn.net/?f=4%5C%20hours)
Answer:
45
Step-by-step explanation:
20 / 9 = 2.222222222223
100 / 45 = 2.222222222223
9 is 45% of 20 and 45 is 45% of 100.