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Gennadij [26K]
3 years ago
15

What is the value of b? b+40 b+880 b-199​

Mathematics
1 answer:
s2008m [1.1K]3 years ago
6 0

Answer:

921b-199

Step-by-step explanation:

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At Niagra High, Mr. Borton bought 4 student tickets and 2 adult tickets for the high school musical which cost $64. then Mrs. Ge
balandron [24]

Answer:

Each student ticket costs $8.33

Each adult ticket costs $15.34

Step-by-step explanation:

At Niagra High, Mr. Borton bought 4 student tickets and 2 adult tickets for the high school musical which cost $64. then Mrs. Gelvoria bought 3 student tickets and 3 adult tickets for the show and it cost her $72. How much are each type of tickets?​

s = cost of each student ticket

a = cost of adult ticket

Our system of equations:

4s + 2a = 64

3s + 3a = 71

-3(4s + 2a = 64) ==> -12s - 6a = -192

2(3s + 3a = 71) ==>     6s + 6a = 142

-12s - 6a = -192

  6s + 6a = 142

-6s = -50

/-6      /-6

s = $8.33 (the cost of each student ticket)

Now, let's find the cost of each adult ticket:

4s + 2a = 64

4(8.33) + 2a = 64

33.32 + 2a = 64

-33.32         -33.32

2a = 30.68

/2        /2

a = 15.34 (the cost of each adult ticket)

(x, y) ==> (8.33, 15.34)

Check your answer:

4s + 2a = 64

4(8.33) + 2(15.34) = 64

33.32 + 30.68 = 64

64 = 64

This statement is true

Hope this helps!

8 0
2 years ago
What is 15 = -y + 10
Murrr4er [49]
It's a simple linear equation in a single variable, 'y' .  Its solution is the number
that 'y' must be in order to make the equation a true statement.  Here's how to
find the solution:

Write the equation:    <span>15 = -y + 10

Subtract 10 from each side:    5 = -y

Multiply each side by -1 :      <u>-5 = y</u>
</span>
7 0
3 years ago
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strojnjashka [21]
It Is D because pulling out a yellow marble is INDEPENDENT to pulling out a green marble which is also independent. hope I helped :]

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What is a multiple of 7 and is also a factor of 7
olga2289 [7]
28 is a multiple of 7 and also a factor of seven!
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3 years ago
Notación científica de 0,567
Phoenix [80]

Answer:

0,00567×10¹

Step-by-step explanation:

Para convertir a notación decimal:

0.00567×10¹

4 0
3 years ago
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