Answer:
The area that he has to run is a [3/4] circle with a radius of 15ft.....so
(3/4) pi * (15)^2 = 520 sq. ft [rounded]
<span>x = 4
Given the description of the triangles, you have 2 similar right triangles. The smaller triangle has a height of 20 and a base of 3x, while the larger has a height of (20+8) = 28 and a base of 4x + 2. We wish to determine the value of x. Since the triangles are similar, the ratio of corresponding sides will be a constant. So:
20/28 = (3x)/(4x+2)
(4x+2)20/28 = (3x)
(20/28)*4x+(20/28)*2 = (3x)
(80/28)*x+(40/28) = (3x)
(20/7)*x + 4/7 = 3x
4/7 = 3x - (20/7)*x
4/7 = (21/7)x - (20/7)*x
4/7 = x/7
4 = x
So the value of x is 4.</span>
Answer:
D: Subtract 3 from both sides
Step-by-step explanation:
5x + 3 = 13
- 3 - 3
------------------
5x = 10
--- ----
5 5
x = 2
Answer:
10
Step-by-step explanation:
The digit in 180 is one place to the left of the digit in 1008, so is 10 times the value.
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In our base-10 place-value number system, moving a digit one place to the left multiplies its value by 10.