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kotegsom [21]
4 years ago
9

I'm really confused plz help fast have alit of work

Mathematics
1 answer:
Elza [17]4 years ago
5 0
Speed = distance / time

so ur speed = (3/5) / (3/8) = 3/5 * 8/3 = 8/5 or 1 3/5 miles per hr.

its the first answer choice
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Find the number that makes the ratio equivalent to 10:6.
ss7ja [257]

Answer:

9*10=90 so 6*9=54   then answer is 90:54

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Please answer thx people
AlladinOne [14]
159

10 squared is 100
Do the 5+3 next to get 8 then square the 8 to get 64

That leaves you with 100+64-5=159
5 0
3 years ago
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Solve the system of equations using substitution y=x-1 and y=-2x+5
pav-90 [236]
Since the two equations equal y, set them equal to each other.

x-1=-2x+5

From there, solve for x.

First get x on one side, by using the addition property of equality.

x-1=-2x+5
3x-1=5

Isolate x by adding 1.
3x=6

Lastly get x all by itself by dividing each side by 3.
x=2

You can now substitute your x-value, 2, into one of the equations (or both, if you wish; either one will result in the same answer.)

y=x-1
y=2-1
y=1

OR

y=-2x+5
y=-2(2)+5
y=-4+5
y=1

Final answer:
x=2 and y=1

Any questions or anything you would like me to clarify, feel free to ask :)
7 0
4 years ago
Derive the equation of the parabola with a focus at (−2, 4) and a directrix of y = 6. Put the equation in standard form.
zlopas [31]
Sketch a graph so you can find the vertex and determine if the parabola is horizontal or vertical. When i graph (-2,4) and then y=6, I find the middle is (-2,5) so that will be the vertex. The distance to the vertex is -1 so 4p=-4.
My formula is (x-h)^2=4p(y-k), now just plug in numbers. You should end up with (x+2)^2=-4(y-5).
Some instructors want you to write (y-k)=1/(4p)(x-h)^2 which is the same thing, so check to see which one you should be using. 
3 0
4 years ago
A tank has a length of 2 feet and a width of 1 foot and us filled to the water depth of 8 inches a stone is places Into the wate
Elina [12.6K]

Answer:

Step-by-step explanation: Volume = length x width x height. You only need to know one side to figure out the volume of a cube. The units of measure for volume are cubic units. Volume is in three-dimensions. You can multiply the sides in any order. Which side you call length, width, or height doesn't matter.

6 0
3 years ago
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