Answer:
A and B
Step-by-step explanation:
An equivalent system of equation is found by adding or subtracting the second equation or when any multiple of both equations are added or subtracted to each other.
Let us see part by part.
A.
So, we know that the internal angles of a triangle add up to 180 degrees, yes?
60 degrees plus 50 degrees equals 110 degrees, and subtract 110 from 180, and you get 70 degrees for angle y.
Now, if the triangles are congruent (identical) and the shape you are describing is like an hourglass, then because of the vertical angles theorem, angle x should be 70 degrees too!
Hope I helped!! :)
It will take him five days to paint 3/4 of the fence.
Answer:
100,000,000
Step-by-step explanation:
10^6= in this case, just add 5 zeros to the 10. each zero multiplies the number by 10
1000000 books
10^2 pages per book- 100 pages
1,000,000 x 100= 100,000,000
