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kkurt [141]
3 years ago
9

Why does the quadratic formula work all the time

Mathematics
1 answer:
Monica [59]3 years ago
3 0

the quadratic formula work all the time because it is suitable for every equation.

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Toby bought 8 hotdogs and 5 fries. It cost $34.00
ruslelena [56]

Answer:

Each hot dog = $3

Each french fry = $2

Step-by-step explanation:

First, lets define our variables:

x = Hotdog

y = fries

Next, you need to set up a cost equation for both Toby and Bernie:

8x + 5y = 34

2x + 6y = 18

Now, we need to isolate one of the variable:

2x + 6y = 18

2x = 18 - 6y

x = 9 - 3y

Next, we need to insert this equation back into the first equation (8x+5y = 34) to find the cost of y (fries):

8x +5y = 34

8 (9-3y) + 5y = 34

72 - 24y + 5y = 34

72 - 19y = 34

19y = 38

y or fries = $2

Finally, we need to find the cost of each hotdog by using the cost of fries ($2) in one of the formulas:

2x + 6y = 18

2x + 6(2) = 18

2x + 12 = 18

2x = 6

x or hotdog = $3

I hope this helps!

-TheBusinessMan

6 0
3 years ago
Plz help me out quick​
natima [27]

Answer: 6:5

Step-by-step explanation:

3 0
3 years ago
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What is the factored form of m2 + - 27n2
Illusion [34]
2(m-27n) this is the answer
3 0
3 years ago
Write as many equivalent expressions to 3/4(4x-8)+1/4(4x-8)
Deffense [45]

Answer:

4x-8

Step-by-step explanation:

3/4(4x-8)+1/4(4x-8)

12/4x-24/4+4/4x-8/4

3x-6+x-2

3x+x-6-2

4x-8

8 0
3 years ago
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ladessa [460]

Answer:

Eiediiih

Step-by-step explanation:

That’s what the capital letters spell

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