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2 years ago

Last question for the night.

Mathematics

2 answers:

klio [65]2 years ago

7 0

Step-by-step explanation:

USE PEMDAS I KNOW YOUKNOT HOW TOUSE PEMDAS RIGHT?

tresset_1 [31]2 years ago

3 0

-29 im not 100% sure. Let me know if I'm right

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One day a store sold 45 pens, one kind at 8.50 and another kind at 9.75. In all 398.75 ws taken in. How many of each kind were s

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There's not enough info to know the exact number for each. There would be at least a 2 different answers because either could be calculated to conclude the end result.

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2 years ago

How many solutions does the system have?Explain

Sergio [31]

Answer: it has no solution

Step-by-step explanation:

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3 years ago

Calculate the value for each determinant:

Sergeeva-Olga [200]

Answer:

Step-by-step explanation:

$\begin{vmatrix}3 & -1\\ -3 & 4\end{vmatrix}=(3\times 4)-(-1)\times (-3)$

= 12 - 3

= 9

$\begin{vmatrix}8 & -1\\ -4 & -1\end{vmatrix}=8\times(-1)-(-1)\times(-4)$

= -8 - 4

= -12

$\begin{vmatrix}-12 & -1\\ 12 & 5\end{vmatrix}=(-12)\times(5)-(-1)\times(12)$

= -60 + 12

= -48

$\begin{vmatrix}2 & -1\\ 2 & -1\end{vmatrix}=2\times(-1)-(2)\times(-1)$

= -2 + 2

= 0

$\begin{vmatrix}0 & -1\\ 17 & 4\end{vmatrix}=0\times(4)-(-1)\times(17)$

= 17

$\begin{vmatrix}1 & 0\\ 0 & 1\end{vmatrix}=1\times(1)-(0)\times(0)$

= 1

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2 years ago

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Who are you.....????

alina1380 [7]

Answer:

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2 years ago

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Suppose that you borrow $3000.00 from a friend and promise to pay back $4935.00 in 3 years. What simple interest rate will you p

Amiraneli [1.4K]

Answer:

the simple interest rate is 18.00%

Step-by-step explanation:

The computation of the simple interest rate is shown below:

Amount = Principal × (1 + rate)^years

$4,935 = $3,000 × (1 + rate)^3

After solving it, the rate of percentage is 18.00%

Hence, the simple interest rate is 18.00%

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2 years ago