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garik1379 [7]
3 years ago
9

Can anyone answer this question for me.

Mathematics
2 answers:
Tanzania [10]3 years ago
8 0

Answer:

That is the formula for solving quadratic equations like:

ax^2+bx+c = 0

You substitute the variables from your quadratic equation to solve them.

Naya [18.7K]3 years ago
5 0
It would be 0

I’m
In college to help other
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A group of 4 friends go out for dinner and the total cost of the dinner is $200. They use a $40 coupon before splitting the bill
lorasvet [3.4K]

Answer:

$40.00

Step-by-step explanation:

the total is 200 so then u subtract the $40 from the coupon which will leave u with 160. Since there is 4 people 160/4 equals 40. Therefore your answer is each person pays $40.00

6 0
3 years ago
Read 2 more answers
A city has 5 new houses for every 7 old houses. If there are 45 new houses in the city, how many old houses are there?
torisob [31]

Answer:

63

Step-by-step explanation:

Make a ratio:

5 : 7 = 45 : x

x = 63

6 0
3 years ago
What are some examples of irrational numbers
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Common Examples of Irrational Numbers
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6 0
3 years ago
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Kiyo bought a pizza for $12.75 and four medium drinks at Paola’s pizza. Define a variable and write an expression to represent t
Travka [436]
Y = total amount of money spent
x = cost of one drink

So our expression is:
4x + 12.75

4x stands for 4 drinks times x price of one drink
The 12.75 is a one time fee for the pizza, since Kiyo isn't buying multiple pizzas.

The problem also asks us to find the total price, so we write an equation:

y = 4x + 12.75
We insert what x is which in this case is $3
y = 4(3) + 12.75
Order of Operations tells us to multiply first:
y = 12 + 12.75
Now add your values:
y = 24.75
Therefore, Kiyo spent a total amount of 24.75 at Paola's pizza.

Let's check our problem just in case:

24.75 = 4x + 12.75
Since we now know what y is equal to, we can plug that into our original equation and check just to verify

We should subtract 12. on both sides of the equation because of inverse operations:

24.75 - 12.75  = 12.75 - 12.75 + 4x
We are left with:

12 = 4x
We divide:
\frac{12}{4}  =  \frac{4x}{4}
Our result is:
3 = x
Which checks out because each drink was in fact, $3 dollars as stated in the word problem. Hope that was thorough enough.


4 0
3 years ago
HELP???? PLEASE!!! HELP?????
saul85 [17]
.55 is the answer. I hope this helped a great deal!
5 0
3 years ago
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