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liraira [26]
4 years ago
10

Plz help its timedddddddddddddddddddd

Mathematics
1 answer:
stepladder [879]4 years ago
6 0

Answer: (0,0),(0,9),(9,0)

Multiply each column by 3 to find 3T of Matrix.

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during a sale a dress is marked down for a selling price of $90 to a sale price of $81 what is the percent markdown​
zavuch27 [327]

Answer:

10%

Step-by-step explanation:

divide 90 into 81

so 81/90=.9

multiply that by 100 and you get 90 so 81 is 90% of 90 so it got marked down 10%

7 0
4 years ago
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The temperature falls from 0 degrees to Negative 12 and one-fourth degrees in 3 and one-half hours. Which expression finds the c
ANEK [815]

Answer:

The expression used to find the change in temperature per hour is Algebraic expression

Thus per hour; the temperature falls at the rate of - 3\dfrac{1}{2}^0

Step-by-step explanation:

A temperature falls from 0 to  - 12\dfrac{1}{4}     in     3\dfrac{1}{2} \ hours

Which expression finds the change in temperature per hour.

From the above given information;

The initial temperature is 0

The final temperature is  - 12\dfrac{1}{4}  

The change in temperature is \Delta T = T_2  -  T_1

\Delta  T = -12\dfrac{1}{4} -0

\Delta T = -12.25

Thus;

-12.25 ° = 3.5 hours

To find the change in x°   per hour; we have;

x°            = 1 hour

The expression used to find the change in temperature per hour is Algebraic expression

From above if we cross multiply ; we have;

(- 12.25° × 1 hour) = (x° × 3.5 hour)

Divide both sides by 3.5 hours; we have:

\dfrac{-12.25^0*1 }{3.5}=\dfrac{ x^0 *3.5}{3.5}

x° =  - 3.5

x° = - 3\dfrac{1}{2}

Thus per hour; the temperature falls at the rate of - 3\dfrac{1}{2}^0

8 0
3 years ago
What value goes in cell A
prisoha [69]

Answer:

Step-by-step explanation:

Be more specific pls?

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All real number except at x=0

Step-by-step explanation:

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4 years ago
A pair of rollerblades is on sale for 35% off the original price. If the original price is $128.40, what is the sale price?
hoa [83]
$44.94 will be your answer
7 0
3 years ago
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