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iVinArrow [24]
3 years ago
15

Help me with this please don’t understand need answers please !

Mathematics
1 answer:
umka21 [38]3 years ago
6 0

Answer:

  • see the attached for the sums
  • the magic number (sums of rows, columns, diagonals) is -6

Step-by-step explanation:

The directions tell you what to do and give an example. That work is to be repeated 15 more times. The work is tedious, at best. I found it slightly less tedious to enter the 64 numbers into a spreadsheet and let it do the sums. See the attached for the result.

At the bottom of the array are the sums of columns. At the right are the sums of rows. The upper right and lower left numbers are the sums of the corresponding diagonals.

The "pattern" is that the sums are all -6, which is what you expect from a magic square.

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4(x+3)=2(2x+9)
kramer

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Step-by-step explanation:

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7 0
2 years ago
14, 15 and 16 please
WARRIOR [948]
14). (Take π value as 22/7)
circumference = 66in
2πr = 66in
2×22/7×r = 66
r = 66×7/2×22
r = 21/2in
d = 2r => d = 2×21/2
therefore diameter of the circle = 21in

15). (Take π value as 3.14)
Circumference = 3.14m
2πr = 3.14m
2×3.14×r = 3.14
r = 3.14/3.14×2
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16). (Take π value as 22/7)
Circumference = 33km
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r = 33×7/2×22
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d = 2r
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4 0
3 years ago
Betty likes to skate at a skate park that is due south of her school and due west of her
AURORKA [14]
The answer will be 12+13 because the skatepark is 12km from school and her favorite game store was 13 km so it’s 12+13=25km
6 0
3 years ago
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krok68 [10]

Answer: The second option

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7 0
2 years ago
The equation y = 35.25x + 40 gives the labor cost y of repairing a car if it takes x hours to repair the car. Which statement is
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x = number of hours to repair the car.

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if x = 2, repair cost (2) = 35.25*2 + 40

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The same thing every time the repair time increases one hour. 

Answer: the last option of the list, for every hour of labor, the cost increases by $35.25
5 0
3 years ago
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