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nikdorinn [45]
3 years ago
14

A particle travels20m in 4 seconds.what is its speed?​

Mathematics
1 answer:
padilas [110]3 years ago
5 0
5m/s

Divide it by the unit. It’s basic simply if
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How do I graph -4x+6y=12
eimsori [14]

You have 2 options.

I will show you the most efficient one, but later I will tell you the other.

-4x+6y=12

6y=4x+12

y=4/6x+12

y=2/3x+12

This tells us the point (0,12) as 12 is where it meets the y-axis (that is why you add it)

And then using the slope, 2/3 we can get (2,15) (which is up 3, right 2)

Just graph those, I would show you exactly, but I cannot add attachments sadly.

The other way (which I won’t show it all as the results would end out with the same line) is to fill in x, then y, with 0

So -4*0+6y=12 which means x=0 and you are solving for y  and -4x+6*0=12 which means y=0 and you are solving for x


8 0
3 years ago
There are 96 red marbles and 144 green marbles in a bag. Jake takes 10 red marbles out. How many green marbles does he need to t
vladimir1956 [14]

Answer:

230 i am pretty sure

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Single choice question
posledela

Answer:

D

Step-by-step explanation:

Because the discount price is the whole equation 24(1-x),

the original price is 24 technically, and the percent of discount has been given as x...

3 0
2 years ago
How do you solve surface area
LekaFEV [45]
For squares and rectangles, it's easy: multiply the length of one side by the other.

For equilateral and isosceles triangles, measure the height (distance from one pointy tip to the point exactly halfway between the other two pointy tips) and multiply by half of the width of the base.  Scalene triangles are more complicated and vary depending on their exact measurements.  However, you can often divide them into several smaller isosceles triangles that can be easily calculated for.

For cylinders, find the area of one circle (use the equation A = \pi r^{2}) and multiply the answer by 2.  Call this number A.  Then, find the circumference of one of the circles.  Call this number C.  Then, measure the length of the cylinder.  Call this number L.  Multiply L and C together, then add A to the product.  That's the surface area of the cylinder.

For spheres, use the equation A = 4 \pi r^{2}, where A represents the surface area, \pi is approximately equal to 3.14, and r represents the radius, which is always exactly half of the diameter. 

Most other shapes, whether 3-dimensional or 2-dimensional, can be calculated by simply adding together the areas of their component parts.  An octagon can be divided into 8 isosceles triangles, which if you're given the right information are easy to calculate for (height times base divided by 2).  Once you find the area of one piece of the octagon, multiply by 8 (the number of sides).  This works for any regular polygon of n sides.
 
If you're being given irregular shapes, just divide them into many smaller, simpler ones that you already know how to calculate for.  Once you've determine the area of each of the component parts, add everything together to find the total area of the whole. 
5 0
3 years ago
Polo shirts come in two colors- white and blue. There are 18 more white polo shirts than blue polo shirts. The white polo shirts
MAVERICK [17]

Answer:

The total number of polo shirts is 50

Step-by-step explanation:

Let

x -----> the number of white polo shirts

y -----> the number of blue polo shirts

we know that

x=y+18 -----> equation A

68\%=68/100=0.68

x=0.68(x+y) ------> equation B

substitute equation A in equation B and solve for y

y+18=0.68(y+18+y)\\ y+18=0.68(2y+18)\\ y+18=1.36y+12.24\\ 1.36y-y=18-12.24\\ 0.36y=5.76\\ y=5.76/0.36\\ y=16\ blue\ polo\ shirts

<u><em>Find the value of x</em></u>

x=16+18=34\ white\ polo\ shirts

<u><em>Find the total number of polo shirts</em></u>

x+y=34+16=50\ polo\ shirts

6 0
3 years ago
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