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weeeeeb [17]
2 years ago
7

If someone travels 20km in 30mins, what is their speed?

Mathematics
1 answer:
scoundrel [369]2 years ago
4 0
You are given a distance of 20 kilometers and time of 30 minutes. You are required to find for the speed of the travelling object. The equation for speed is distance over time. Speed is a scalar quantity. It tells you the direction of the travelling object. The solution in this problem is,  

Speed = distance/time
Speed = 20 kilometers / 30 minutes
<u>Speed = 2/3 kilometers per minute or 0.667 kilometers per minute</u>
<span>Therefore, the speed of the object is 0.667 km per minute.</span>
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LUCKY_DIMON [66]

Answer:

its D

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3 0
3 years ago
What are the coordinates of the orthocenter of △XYZ with vertices at X(−3, 3) , Y(1, 3) , and Z(−3, 0) ?
klemol [59]
<span>Orthocenter is at (-3,3) The orthocenter of a triangle is the intersection of the three heights of the triangle (a line passing through a vertex of the triangle that's perpendicular to the opposite side from the vertex. Those 3 lines should intersect at the same point and that point may be either inside or outside of the triangle. So, let's calculate the 3 lines (we could get by with just 2 of them, but the 3rd line acts as a nice cross check to make certain we didn't do any mistakes.) Slope XY = (3 - 3)/(-3 - 1) = 0/-4 = 0 Ick. XY is a completely horizontal line and it's perpendicular will be a complete vertical line with a slope of infinity. But that's enough to tell us that the orthocenter will have the same x-coordinate value as vertex Z which is -3. Slope XZ = (3 - 0)/(-3 - (-3)) = 3/0 Another ick. This slope is completely vertical. So the perpendicular will be complete horizontal with a slope of 0 and will have the same y-coordinate value as vertex Y which is 3. So the orthocenter is at (-3,3).</span>
8 0
3 years ago
On #4 I’m trying to find Arc RS and on
AnnyKZ [126]

Answer:128

Step-by-step explanation:

If you look at the circle. The two ones that look most like rs is the 64's. Therefore using logic you can just add 64 plus 64 to get 128. Hope it helps.

5 0
3 years ago
Select each expression that is equivalent to 18x + 3.
Vlada [557]

Answer:

21 is the answer for 18x +3

Step-by-step explanation:

18x + 3

x=3+18

x=21

7 0
2 years ago
How do I simplify this 5a + 3b - 6a - b
BigorU [14]
Take the as together and take the bs together.

5a + 3b - 6a - b.
5a - 6a + 3b - b.  Then simplify.
-a + 2b.

That's it.
3 0
3 years ago
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