Yes, they are congruent. Congruent means that they are exactly equal in size and shape. The are both Right Triangles (you can tell by the 90 degree angle) and the lines on them are in the same spots, which means, line YZ is equal to line BC, and that line XZ is equal to line AC. I hope that helped! :)
These questions are just a way of saying it's a two system equation. You can go about this by elimination for both of them.
-8x - 4y = -12
+ 6x + 4y = 14
---------------------
-2x = 2
/-2
x=-1
Since A is the only answer with x=-1, you technically don't have to solve for y but it is still a good idea to plug x into one of the equations and solve for y.
2x + 3y = 50
+ 4x -2y = 4
-----------------
multiply the top equation by -2 so you can eliminate your x's
-4x - 6y = -100
+4x - 2y = 4
------------------
-8y = -96
/-8
y=12
Once again, your first answer is the only one with y=12 but you should still go back through and plug things in to double check!
Answer:
its d 42$ Step-by-step explanation:
i want brainiest
Answer: 25.6
First, notice that there is 1 adult and 2 children.
A normal adult ticket costs 24. But it's 1/3 off, so 24 * 1/3 = 8 off. That means with the Railcard, it only costs 24 - 8 = 16.
Next, one child ticket costs 12. But it's 60% = 3/5 off, so 12 * 3/5 = 7.2 off. That means with the Railcard, it only costs 12 - 7.2 = 4.8.
Remember there are 2 children, so we multiply by 2 to get 4.8 * 2 = 9.6 for the children.
Final answer: 1 adult + 2 children = 16 + 9.6 = 25.6.
Hope that helped,
-sirswagger21
