Adding or subtracting to make the original number the closest 10, 100, etc.
Hi there! The answer is C.
We can see a reflection across the x-axis. The x-axis in this figure is an axis of symmetry. When we would measure the distance from a certain point in both of the triangles (the same point in the two triangles), this distance would be the same. Therefore this figure is reflected across the x-axis.
Answer: 7 inches
Step-by-step explanation:
If x is the first piece, and the second piece is twice as long, then the second piece is 2x.
If the third piece is three times as long as the first piece, x, then the third piece is 3x.
The 42-inch board must be equal to all 3 pieces, so we will set up an equation and solve for x.
42 = x + 2x + 3x
42 = 6x
42 = 6x
7 = x
The first piece is 7 inches long.
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Answer:
No solution
Step-by-step explanation:
The question is unsolvable so theres no solution.
3(x+2)+4(3+x)-3=7x
3x + 6 + 12 + 4x -3 = 7x
7x + 15 = 7x
7x - 7x + 15 = 7x - 7x
15 = 0