Answer:
7 minutes
Step-by-step explanation:
1000 stairs in 25 minutes
280 stairs in 280*25 / 1000 = 7 minutes
Answer:
x^5
Step-by-step explanation:
Because the area of a square can be found by squaring one of its side lengths, we can set up this equation:
(x)^2 = x^10
Using properties of exponents, I know that I can turn the exponent of a similar base from 2 to 10 by multiplying it by 5. Therefore, I know that the side length of this square is x^5.
Answer:
54 years
Step-by-step explanation:
Joyce age = x
Alex age = y
3x = 2y - - - (1)
y - 9 = 2(x - 9)
y - 9 = 2x - 18
-9 + 18 = 2x - y
9 = 2x - y
y = 2x - 9 - - (2)
3x = 2y
3x = 2(2x - 9)
3x = 4x - 18
18 = 4x - 3x
18 = x
Hence,
Mrs stone is 3 * 18 = 54 years
Answer:
A) x + 0
Step-by-step explanation:
In triangle ABC, the coordinates are: A(1, -1), B(1, -5) and C(4, -5)
In triangle A'B'C', the coordinates are: A(1, -5), B(1, 1) and C(4, 1)
Look at the x-coordinates in both the triangles remains the same because the triangles are reflected over x-axis, therefore, only the y-coordinate changes.
Therefore, the rule for x-coordinates = x + 0
Answer: A) x + 0
Hope this was helpful.
Thank you.
