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MrMuchimi
2 years ago
8

Challenge The price of Stock A at 9 A.M. was $14.63. Since then, the price has been increasing at the

Mathematics
1 answer:
lozanna [386]2 years ago
8 0

9514 1404 393

Answer:

  2.5 hours

Step-by-step explanation:

The price of stock A is described by ...

  A = 14.63 + 0.09t . . . . . . where t is time in hours after 9 A.M.

And the price of stock B is ...

  B = 15.13 - 0.11t

The two prices will be equal when ...

  A = B

  14.63 +0.09t = 15.13 -0.11t

  0.20t = 0.50 . . . . . . . . . . . . . add 0.11t -14.63 to both sides

  t = 0.50/0.20 = 2.5

The prices of the two stocks will be the same in about 2.5 hours.

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Use the perfect square method <br> (3x + 3)^2 = 36
kkurt [141]

Factor out the common term; 3

(3(x + 1))^2 = 36

Use the Multiplication Distributive Property; (xy)^a = x^ay^a

3^2(x + 1)^2 = 36

Simplify 3^2 to 9

9(x + 1)^2 = 36

Divide both sides by 9

(x + 1)^2 = 36/9

Simplify 36/9 to 4

(x + 1)^2 = 4

Take the square root of both sides

x + 1 = √4

Since 2 * 2 = 4, the square root of 2 is 2

x + 1 = 2

Break down the problem into these 2 equations

x + 1 = 2

x + 1 = -2

Solve the first equation; x + 1 = 2

x = 1

Solve the second equation; x + 1 = -2

x = -3

Collect all solutions;

<u>x = 1, -3</u>

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3 years ago
In the city, the dust and between the library and the police station is 3 miles less than twice the distance between the police
alina1380 [7]

Answer:

7 miles

Step-by-step explanation:

Let's call the distance between the library and police station x. Then, the distance between the police station and fire station would be 3 less than twice x. Twice means multiply by 2 so twice x is 2 * x = 2x and 3 less than means that you subtract 3 so 3 less than 2x is 2x - 3. Now, we know that x = 5 so all we have to do now is substitute x = 5 into 2x - 3, therefore, the answer is 2 * 5 - 3 = 7 miles.

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3 years ago
If the numbers 25, 30 ,40, 48 are in proportion, Middle terms are.....
zubka84 [21]

Step-by-step explanation:

it is 5/6 ..............

3 0
3 years ago
Please also should work
DedPeter [7]

Answer:

B 2 < x < 6

Step-by-step explanation:

six times an integer is between 12 and 36.  Between does not include so we use <   not ≤

12 < 6x < 36

Divide all sides by 6

12/6 < 6x/6 < 36/6

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7 0
4 years ago
Luigi's pizzas: Complete the entire table as you answer the question. 4. Luigi uses 36 cups of flour for every 6 pizzas he makes
Alekssandra [29.7K]

Answer:

36/6=6

6 cups per pizza

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Step-by-step explanation:

4 0
3 years ago
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