if it takes 60 km to get to the beach and it's the same distance back:
60 x 2 = 120 km
No need to look at the times.
First equation: -8x+7y=-17
Second equation: y=2x+1
Take the value of y from the second equation, as y is already isolated, and plug it in for y in the first equation. Simplify and solve for x.
-8x+7(2x+1)=-17
-8x+14x+7=-17
6x+7=-17
6x=-24
x=-4
Take the value of x we just found and plug it into the first equation. Solve for y.
-8(-4)+7y=-17
32+7y=-17
7y=-49
y=-7
Hope this helps!! :)
The U.S. against Hawaii is the Battle of Midway.
I think the answer is B, b/c if u multiply the 234 times 3 you will get 702.
Hope This Helped.
Answer: In a regular decagon, there are 10 lines of symmetry.
Step-by-step explanation:
Line of symmetry divides a figure into two equal halves so that if you flip the half image over the line of symmetry , the figure will look unchanged.
A regular decagon has 10 vertices and 10 edges.
To draw line of symmetry :
1.Draw lines to meet the exactly opposite point [shown by red color in the picture attached with the answer].
∴ 10 vertices will form 5 lines of symmetry.
2.Draw lines from the mid points of all the edges to the midpoint of the exactly opposite edge [shown by blue color in the picture attached with the answer].
∴ 10 edges will form 5 lines of symmetry.
⇒Total lines of symmetry in a decagon =5+5= 10