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arsen [322]
3 years ago
15

Whaaaaaaaaaaaaat????

Mathematics
1 answer:
IrinaK [193]3 years ago
3 0

9514 1404 393

Answer:

  7 pizzas

Step-by-step explanation:

For a difference in price of $58 -25 = $33, a customer gets a difference in number of 5 -2 = 3 pizzas. Then a pizza costs $33/3 = $11.

The cost of 2 pizzas is $22, so the delivery charge is $25 -22 = $3.

For $80, after subtracting the $3 delivery charge, $77 goes to the cost of pizzas. For that amount, $77/$11 = 7 pizzas will be delivered.

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Solve the system of equations using elimination.<br><br> 4x - 7y = 5<br> 9x – 7y = –15
Anni [7]

Step-by-step explanation:

We have to get one positive 7y so,

4x-7y=5

9x-7y=-15

multiply anyone of the equation by -1. I choose the first one so,

4x+7y=-5

9x-7y=-15

we can now cancel the y's so the equation will be left with

-4x=-5

9x=-15

add the equations

5x=-20

divide by 5 n u get

x=-4

now plug in the x value in any one of the

equations

I choose the first one so,

4(-4)-7y=5

-16-7y=5

add 16 to both sides

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divide by -7

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finally check.

8 0
3 years ago
Which of the following expressions represents the distance between -13 and -4 on a number line
lesya692 [45]

Answer:

<h2>a) |-13 - (-4)|</h2>

Step-by-step explanation:

The formula of a distance between two points (numbers) A and B on the number line:

d = |B - A| = |A - B|

We have A = -13 and B = -4. Substitute:

d = |-13 - (-4)|

6 0
2 years ago
Is a trapezoid always a quadrilateral?<br> yes<br> no
Iteru [2.4K]

Answer:

The correct answer is that all trapezoids are quadrilaterals. ... Trapezoids are four-sided polygons, so they are all quadrilaterals.

Step-by-step explanation:

hope it helped ( ◜‿◝ )♡

3 0
2 years ago
Read 2 more answers
Describe how the graph of y=|x| and how it is difficult
Ksju [112]
Y= to the absolute function of x?
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4 0
3 years ago
Write a rule for the linear function shown in the graph.
Bezzdna [24]

Answer:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

Point Form:

( 1 ,   − 2 )

Equation Form:

x = 1 ,   y = − 2

Step-by-step explanation:

Graph.

y = 3 x − 1

y = x + 1

y = − x − 1

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8 0
3 years ago
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