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2 years ago

Becky bought a magazine for $3.68, and the sales tax was 8.25%. How much sales tax did Becky pay on the magazine?

Mathematics

1 answer:

Lerok [7]2 years ago

3 0

Answer:

$0.30

Step-by-step explanation:

3.68*.0825= .3036

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the figure below are squares. Find an expression for the area of each shaded region. Write your answer in standard form.

zheka24 [161]

(X+3)^2 -(X)^2
(X^2+6x+9) - X^2
6x+9

6 0

3 years ago

-10x - 135 = 117 + 2x A. 25 B. -18 C. -21 D. 22 Helps pls

Lina20 [59]

Answer:

Step-by-step explanation:

Add 10x to both sides:

-10x - 135 = 117 + 2x

-10x - 135 + 10x = 117 + 2x + 10x

-135 = 117 + 12x

Subtract 117 from both sides:

-135 - 117 = 117 + 12x - 117

-252 = 12x

Divide both sides by 12:

$\frac{-252}{12} = \frac{12x}{12}$

-21 = x

So the answer is C.

Hope this helps!

6 0

2 years ago

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The matrix C=[1,-2_-3,7] was used to encode a phrase to [7,-28,-25,-35,-2_-21,107,90,123,17]. Find C^-1 and use it to decode the

posledela

$C= \left[\begin{array}{cc}1&-2\\-3&7\end{array}\right] \\ C^{-1}= \left[\begin{array}{cc}7&2\\3&1\end{array}\right] \\ \left[\begin{array}{cc}7&2\\3&1\end{array}\right] \times \left[\begin{array}{ccccc}7&-28&-25&-35&-2\\-21&107&90&123&17\end{array}\right] \\ =\left[\begin{array}{ccccc}49-42&-196+214&-175+180&-245+246&-14+34\\21-21&-84+107&-75+90&-105+123&-6+17\end{array}\right] \\ =\left[\begin{array}{ccccc}7&18&5&1&20\\0&23&15&18&11\end{array}\right]$
is the required matrix.

6 0

2 years ago

Please help with steps:

Nezavi [6.7K]

Answer:

20 25 35 40 50

4 5 7 8 10

step-by-step Explaination:

20÷4=5 so 5 photos every minute

5×5=25

35÷5=7

5×8=40

50÷5=10

3 0

2 years ago

21, 24, 26, 28, 32, 34, 36,52 find the mean and range

aliya0001 [1]

Answer:

mean: 31.625

range: 31

Step-by-step explanation:

7 0

2 years ago

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