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Harman [31]
2 years ago
11

Harry has 8 more marbles than hermione. together they have 40 marbles. how many does each have?​

Mathematics
2 answers:
Fynjy0 [20]2 years ago
4 0

Answer:

Hermione has 16 marbles. Harry has 24 marbles.

Step-by-step explanation:

Harry = y + 8

Hermione = y

y + 8 + y = 40

2y + 8 = 40

2y = 32

y = 16

Hermione has 16 marbles.

Harry has 24 marbles because 16 + 8 = 24.

aksik [14]2 years ago
3 0

Answer:

Harry has 24; Hermione has 16

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Answer:

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Step-by-step explanation:

Lets   y  =  f(x)   in a cartesian coordinates

Having three zeros:

x = -3       ⇒   x  = -2      ⇒   and   x = 1  

That meas that if   x  takes the above mentioned  values " y " must be zero

therefore  y  must be of the form

f (x)  =  y  =  ( x + 3 ) *  ( x +  2 ) * ( x - 1 )     (1)

In that case for y to be zero one of the factors should be zero or

y  =  0        x  + 3 = 0    and  x = - 3  is a zero of the function y .

The same reasoning applies for the other two roots

Now we have to evaluate the other condition.

According to problem statement the function passes through the point ( 3, 11 ) , that means that when x =  3 ,  y have to be 11, therefore we plug in equation (1)  that value to see what happens

y  =   ( x + 3 ) *  ( x +  2 ) * ( x - 1 )

11  =  ( 3 + 3 ) * ( 3 + 2 ) + ( 3 - 1)   =  6*5*2  = 60

Then we adjust the expression (1) to meet the condition of the function passing through point  ( 3 , 11) as:

y  =  ( 3 + 3 ) * ( 3 + 2 ) + ( 3 - 1) * 11/60    (2)

and check to see if we did right

for y to be zero      x   can be    x = - 3    x  =  -2   and  x = 1 in all these cases y = 0.  And if  x  =  3   in equation (2)  y = 11. And that what we want to shown. Then the solution is:

y  =   ( x + 3 ) *  ( x +  2 ) * ( x - 1 )* 11/60

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In the given table we have to find out the percent of the increase in the number of each job to find out the greatest one.

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Percentage is the way to represent the part of a whole in a fraction of 100.

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In 2016 the total number of Editors was 124135

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