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Ivanshal [37]
3 years ago
11

3+ 4×12 Word problem

Mathematics
2 answers:
Rudiy273 years ago
5 0
Three plus four times twelve
Ivahew [28]3 years ago
5 0
According to PEMDAS, this is what I came up with.
Roy has to fix his car. Repair costs $12 for each of his four tires. The price increases by $3 because of gas prices. What is the total amount of money Roy spends fixing his car?
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Type the correct answer in each box
Luba_88 [7]

Answer:

We know that the equation of the circle in standard form is equal to <em>(x-h)² + (y-k)² = r²</em> where (h,k) is the center of the circle and r is the radius of the circle.

We have x² + y² + 8x + 22y + 37 = 0, let's get to the standard form :

1 - We first group terms with the same variable :

(x²+8x) + (y²+22y) + 37 = 0

2 - We then move the constant to the opposite side of the equation (don't forget to change the sign !)

(x²+8x) + (y²+22y) = - 37

3 - Do you recall the quadratic identities ? (a+b)² = a² + 2ab + b². Now that's what we are trying to find. We call this process <u><em>"completing the square"</em></u>.

x²+8x = (x²+8x + 4²) - 4² = (x+4)² - 4²

y²+22y = (y²+22y+11²)-11² = (y+11)²-11²

4 - We plug the new values inside our equation :

(x+4)² - 4² + (y+22)² - 11² = -37

(x+4)² + (y+22)² = -37+4²+11²

(x+4)²+(y+22)² = 100

5 - We re-write in standard form :

(x-(-4)²)² + (y - (-22))² = 10²

And now it is easy to identify h and k, h = -4 and k = - 22 and the radius r equal 10. You can now complete the sentence :)

5 0
3 years ago
Compare the values of the underline 6,300 and 530
alisha [4.7K]
The value of 3 in 6,300 is 10 times the value of 3 in 530. And your welcome.
7 0
3 years ago
Read 2 more answers
P-4=-9+p
pantera1 [17]

Answer:

no solution

Step-by-step explanation:

p-4=-9+p

p=-5+p

0=-5

8 0
3 years ago
Solve the system below, choose the x and y answers from the list below.
Bumek [7]

Answer:

y=2, x=-1

Step-by-step explanation:

We can add the two equations together to eliminate x:

6x+5y+(-6x)+7y=4+20

12y=24

y=2

We plug y into the first equation and get

6x+5(2)=4

6x+10=4

6x=-6

x=-1

5 0
2 years ago
a bag contains 15 dark chocolates, 16 caramel chocolates, and 19 milk chocolates. the probability that amber’s teacher distribut
Yuri [45]
The total number of chocolates is 15 + 16 + 19 = 50

There are 15 + 16 = 31 [dark chocolates + caramel chocolates]

The probability of picking one of them is 31 / 50.


8 0
3 years ago
Read 2 more answers
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