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Luba_88 [7]
2 years ago
5

Help i dont feel like doing this help me please

Mathematics
1 answer:
natita [175]2 years ago
3 0

Answer:

The answer is A. $1.35

Step-by-step explanation:

Two $10 bills are equal to $20.

Your change is $7.85

So if you subtract $7.85 from $20 you will come up with $12.15.

$12.15 is how much money you spend on mini burgers.

You can then divide how much money you spent with how many burgers you bought.

12.15 divided by 9 gives us 1.35. So each burger was $1.35.

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Help me with the right answer
Nadya [2.5K]

Answer:

x = 3

y = 1

Step-by-step explanation:

9x - y = 26  ---------------(I)

9x + y = 28 ---------------(II)

9x - y = 26

9x = 26 + y

Substitute 9x = 26 + y in equation (II)

26 + y + y = 28               {add like terms}

26 + 2y = 28             {subtract 26 from both sides}

         2y = 28 - 26

        2y = 2    {divide both sides by 2}

           y = 2/2

y = 1

Substitute y =1 in equation (I)

9x - 1 = 26

9x = 26 + 1

9x = 27

x = 27/9

x = 3

x = 3

y = 1

6 0
3 years ago
Read 2 more answers
PLEASE HELP!!! ASAP PLEASE !! IM BEGGING !!!!!!!
nadya68 [22]
ABC and CBH are right angles

DBC = 90 - 37 = 53
CBJ = 90 - 31 = 59

HBD = 180 - 37 = 143
or
HBD = 31 + 53 + 59 = 143 :)
3 0
3 years ago
Read 2 more answers
What is the time that is 4 hours and 45 minutes after 4:25am
spayn [35]
4:25
60 mins in 1 hour
4 hours after 4:25=8:25
45 mins+8:25
45+25=70
70=60+10
60=1 hour
add 1 to 8
9
9:10 am is the answer
4 0
2 years ago
Widget Wonders produces widgets. They have found that the cost, c(x), of making x widgets is a quadratic function in terms of x.
AnnyKZ [126]

The total cost of producing 6 widgets is $24 if the company also discovered that it costs $16 to produce 2 widgets, $18 to produce 4 widgets, and $48 to produce 10 widgets.

<h3>What is a quadratic equation?</h3>

Any equation of the form \rm ax^2+bx+c=0  where x is variable and a, b, and c are any real numbers where a ≠ 0 is called a quadratic equation.

As we know, the formula for the roots of the quadratic equation is given by:

\rm x = \dfrac{-b \pm\sqrt{b^2-4ac}}{2a}

Let's suppose the quadratic function is:

c(x) = ax² + bx + c

Plug c(x) = $16

x = 2

16 = 4a + 2b + c ...(1)

Plug c(x) = $18

x = 4

18 = 16a + 4b + c ...(2)

Plug c(x) = $48

x = 10

48 = 100a + 10b + c ...(3)

After solving equations (1), (2), and (3) by substitution method:

a = 0.5

b = -2

c = 18

c(x) = 0.5x² -2x + 18

Plug x = 6 widgets:

c(6) = 0.5(36) - 12 + 18 = $24

Thus, the total cost of producing 6 widgets is $24 if the company also discovered that it costs $16 to produce 2 widgets, $18 to produce 4 widgets, and $48 to produce 10 widgets.

Learn more about quadratic equations here:

brainly.com/question/2263981

#SPJ1

5 0
2 years ago
Which choice is the solution to the system? x + 2y = 1 y = − 1 2 x + 4
vazorg [7]

Answer:

no solutions

Step-by-step explanation:

x + 2y = 1

y = − 1/ 2 x + 4

Substitute the second equation into the first

x + 2(-1/2x+4) = 1

Distribute

x -x +8 = 1

Combine like terms

8=1

This is never true so there are no solutions

7 0
3 years ago
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