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padilas [110]
3 years ago
14

The sum of the integers p and q is 495. If p is divided by 10, the result is equal to q. What is the value of p ?

Mathematics
1 answer:
velikii [3]3 years ago
5 0
450 ....................................................................................
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Solve the system by substitution:<br> y = -3x + 10<br> y=-3x + 4<br> Please show the steps!
sergiy2304 [10]

Answer:

x=1, y=7

Step-by-step explanation:

y = -3x + 10 - first equation

y=-3x + 4 - second equation

rearrange the expression to

-3x-y= -10

3x-y= -4

pick an equation and simplify; lets pick the second equation

3x-y= -4

\frac{3x}{3} = \frac{-4+y}{3}  

divide 3 by both sides

x= \frac{-4+y}{3} - third equation

substitute the value of x into an equation; lets pick the first equation

-3x-y= -10

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simplify. -3 cancels 3 so we are left with

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simplify

4-y-y= -10

4-2y= -10

subtract 4 from both sides

-2y= -10-4

-2y= -14

divide -2 by both sides

y=7

substitute the value of y, (y=7) in an equation, we are using the second equation

3x-y= -4

3x-7= -4

3x = -4+7

3x= 3

divide 3 by both sides

x=1

so the answer is x=1, y=7

5 0
3 years ago
Q ,# 13 Graph the function<br>Y = - X + X ^2
GalinKa [24]
We have the following function that is a quadratic function:

y=-x+x^2

So the graph of this function is shown in the figure below. This is a <em>parabola</em> as you can see. The roots of this functions, that is, the x-intercepts are:

y=-x+x^2 \\ y=x(x-1) \\ \\ x_{1}=0 \ and \ x_{2}=1

As you can see in the figure. This function decreases from (-\infty,0.5) and increases from (0.5, \infty)

Finally, another thing we can see from the graph is that the vertex is the point:

V(0.5,-0.25)


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Alexeev081 [22]

Answer:

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Step-by-step explanation:

Given :

Kendra has 73 cents

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∴ She requires additional money = 1\ dollar - 73 \ cents = 27 \ cents

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To make 27 cents =  25+1+1 = 1 coin of 25 cent & 2 coins of 1 cent

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Ilia_Sergeevich [38]

Answer:

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Step-by-step explanation:

this is a function

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melamori03 [73]

Answer:

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Step-by-step explanation:

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