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4 years ago

10

WILL GIVE BRAINLIEST, RATING, AND THANKS!

1 answer:

Lerok [7]4 years ago

5 0

For both part A and part B, the cross-section would be a square.

For part c, the reasons the shapes are the same is the 3-D figure of a cube has 6 faces that are all squares. Since every face is a square, you cannot cut a cross-section that is any shape but a square. Cross-sections in 3-D prisms can reflect the face they are nearest to, so with every face being identical on a cube, the cross sections are also identical.

I hope this helps! :)

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at a clothing store, levi's jeans are on sale for 40% off. sales tax is 7%. which expression will calculate the total cost of le

aleksandrvk [35]

Given:

Discount = 40%

Sales tax = 7%

To find:

The total cost of levi jeans with an original price of x.

Solution:

Let x be the original price of the jeans. Then the price after 40% discount is

$Price=x-40\%\text{ of }x$

$Price=x-\dfrac{40}{100}x$

$Price=x-0.4x$

$Price=0.6x$

The price after 7% of sales tax.

$Price=0.6x+7\%\text{ of }0.6x$

$Price=0.6x+\dfrac{7}{100}\times 0.6x$

$Price=0.6x+0.042x$

$Price=0.642x$

Therefore, the total cost of the levi jeans with an original price of x is represented by the expression 0.642x.

4 0

3 years ago

The top and bottom of the box are squares with sides of 4 in. Find the total area of the top and bottom.

Nezavi [6.7K]

Answer:

32in^2

Step-by-step explanation:

top= (4inx4in)= 16in2

bottom is the same as the top, add top and bottom 32in^2

3 0

3 years ago

Read 2 more answers

What is the distance between (-5, 10) and (-5, -1) ? Label your answer with<br> the word United

PSYCHO15rus [73]

Answer:

d = 9

Step-by-step explanation:

d = $\sqrt{(-5 - 5)^{2} + (10 - 1)^{2} }$

d = $\sqrt{(0) + (9)^{2} }$

d = $\sqrt{0 + 81}$

d = $\sqrt{81}$

d = 9

3 0

3 years ago

Find the solution of the system of equations. 3x-8y = 19<br>3x + 5y = -46<br>

sattari [20]

(-7,-5)

Step-by-step explanation:

3x-8y = 19

minus

3x + 5y = -46

0x - 13y = 65

- 13y = 65

÷-13

y = - 5

Substitute y = - 5 into one of the functions:

3x-8y = 19

-8 x - 5 = 40

3x + 40 =19

-40

3x. = - 21

÷3

x= - 7

Solution is (-7,-5)

Hope this helps!

4 0

3 years ago

Together, Linda and Penny sold 492 boxes of Girl Scout cookies. Penny

boyakko [2]

Answer:

222

Step-by-step explanation:

Let L = number of boxes Linda sold.

Let P = number of boxes Penny sold.

The sold a total of 492 boxes.

L + P = 492

Penny sold 48 more boxes than Linda.

P = L + 48

Substitute P with L + 48 in the first equation and solve for L.

L + L + 48 = 492

2L + 48 = 492

2L = 444

L = 222

Answer: Linda sold 222 boxes.

Check:

Penny sold 48 more boxes, so she sold 222 + 48 = 270.

Add the numbers they sold: 222 + 270 = 492

The difference is 48, and the total is 492. Our answer is correct.

5 0

3 years ago