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Maksim231197 [3]
4 years ago
13

Kaia found 25 shells on the bench yesterday today she found 25 marshals she sorted are the shows into five piles which equation

can be used to find how many shows are in each pile

Mathematics
1 answer:
Helga [31]4 years ago
3 0

Answer:

<em>Kaya found 25 shells on the beach yesterday.Today she found 25 more shell. She sorted all the shells into 5 pile.Which equation can be used to find how many shells are in each pile? </em>

<em>A.s=(25+25)÷5 </em>

<em>B.s=25÷5 </em>

<em>C.s=(25+25)-5</em>

Equation A can be used to find the number of shells in each piles.

Step-by-step explanation:

Given:

Number of shells Kaya found day before = 25

Number of shells she found today = 25

According to the question:

She sorted it into 5 piles meaning we have to equally put them in each pile, for this we have to divide the total number of shells.

Let the number of shells in each pile = s  

And total number of shells = (25+25)=50

So,

The number of shells in each pile.

⇒ s=\frac{Total\ no.\ of\ shells}{Number\ of \ piles}

⇒ s=\frac{50}{5}

⇒ s=10

From equation A where, s=\frac{(25+25)}{5} =\frac{50}{5} =10 gives the same answer.

Then option A is the right choice.

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Answer:

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Step-by-step explanation:

20+25+15 = 60

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an ellipse has a center at the origin, a vertex along the major axis at (13, 0), and a focus at (12, 0). What is the equation of
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\frac{x^2}{a^2} + \frac{y^2}{b^2}  = 1

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Read 2 more answers
Please help Need help
Anettt [7]
This problem can be readily solved if we are familiar with the point-slope form of straight lines:
y-y0=m(x-x0) ...................................(1)
where 
m=slope of line
(x0,y0) is a point through which the line passes.

We know that the line passes through A(3,-6), B(1,2)

All options have a slope of -4, so that should not be a problem.  In fact, if we check the slope=(yb-ya)/(xb-xa), we do find that the slope m=-4.

So we can check which line passes through which point:

a. y+6=-4(x-3)
Rearrange to the form of equation (1) above,
y-(-6)=-4(x-3)  means that line passes through A(3,-6) => ok

b. y-1=-4(x-2) means line passes through (2,1), which is neither A nor B
   ****** this equation is not the line passing through A & B *****

c. y=-4x+6  subtract 2 from both sides (to make the y-coordinate 2)
   y-2 = -4x+4, rearrange
   y-2 = -4(x-1)  
   which means that it passes through B(1,2), so ok

d. y-2=-4(x-1)
   this is the same as the previous equation, so it passes through B(1,2), 
   this equation is ok.

Answer: the equation y-1=-4(x-2) does NOT pass through both A and B.
   
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Answer:

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