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slamgirl [31]
3 years ago
14

Find an expression for the number of colored border tiles needed for any N x N square center.

Mathematics
1 answer:
nekit [7.7K]3 years ago
7 0

Answer:

8N - 4 border tiles.

Step-by-step explanation:

There are 4 border tiles in each corner and between  the tiles there are N-2 tiles along the 4 sides.

So the number of border tiles

= 4+ 4(N - 2)

= 4 + 4N - 8

= 8N - 4.

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Solve the linear expression 5(-3.4k-7)+(3k+21)
Ksivusya [100]

Our expression is below

5(-3.4k-7)+(3k+21) = 0

by solving it for the value of k

(-17k-35)+(3k+21) = 0

-17k+3k-35+21 = 0

-14k-14 = 0

-14k = 14

k = \frac{14}{-14}

k = -1



6 0
3 years ago
Find the slope of the line y = 5/9x + 7/2
kiruha [24]

Answer:

5/9 is your answer

Step-by-step explanation:

8 0
3 years ago
Mary has a pink dress, a blue dress, and a yellow dress. She has a black pair of shoes and a white pair. How many dress and shoe
Yanka [14]
There are two ways to solve this. 
The first way is logically. 
Mary can 
-wear a pink dress with black shoes   -wear a pink dress with white shoes
-wear a blue dress with black shoes   -wear a blue dress with white shoes
-wear a yellow dress with black shoes   - wear a yellow dress with white shoes

Count them up, and you'll get six combinations! 

Another way is simply mathematically, which is easier in my opinion. 

3 (different colored dresses) × 2 (different colored shoes) = 6 (combos)
8 0
3 years ago
Can someone please solve this for me??!?
k0ka [10]

B is correct... Is that not right?

8 0
3 years ago
Read 2 more answers
Find the distance that the earth travels in eight days in its path around the sun. assume that a year has 365 days and that the
lora16 [44]
The speed of earth will be found as follows:
speed=distance/time
distance=93 million
time=365
speed=(93)/365=254, 794.5205 mi/day
thus distance moved for 8 days will be:
distance=speed*time
=(254794.5205)×8
=2,038,356.164 miles

5 0
3 years ago
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