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spayn [35]
2 years ago
9

I NEED HELP ASAP! In a magic square, the sum of the numbers in each row, column, and diagonal is the same. Write and solve equat

ions to find the values of a, b, and c.

Mathematics
1 answer:
Trava [24]2 years ago
8 0

Answer:

a=22,\\b=31,\\c=13

Step-by-step explanation:

When choosing equations to write, make sure you choose a pair that allow you to isolate a variable and solve for it.

Sample solution:

a+25+28=16+25+34,\\\\a+28=16+34,\\a+28=50,\\a=\boxed{22}

16+b+28=16+25+34,\\b+44=75,\\b=\boxed{31}

34+c+28=16+25+34,\\c+28=41,\\c=\boxed{13}

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If -7-4r=-15, what is the value of r/2 + 9
TEA [102]

Answer:

Step-by-step explanation:

Consider -7-4r=-15. Adding 7 on both sides of the equation,

-4r=-8 --- r = 2

Plug in value of r in r/2 + 9 = 2/2+9 = 1+9 = 10

6 0
2 years ago
Help!! <br><br> I think I got these wrong, so please help!! Thank you!
Andrew [12]

Answer:

(x+3)(x+4)(x-4)

x+2 and x-3 are not factors but x-4 is

Step-by-step explanation:

let's factor it :)

x^3 + 3x^2 - 16x -48

first we will factor this:

x^3 + 3x^2

x^2(x + 3)

then factor the second part :

- 16x - 48

-16(x + 3)

so now,

x^2(x + 3) - 16(x + 3)

factor out x+3

(x+3)(x^2 - 16)

factor x^2 - 16

(x+3)(x+4)(x-4)

8 0
2 years ago
M=2*2*3*5*5 and N=2*2*2*3*3*7 find the largest number that divides exactly M and N​
Gelneren [198K]

Answer:

6

Step-by-step explanation:

M=2*2*3*5*5=300

N=2*2*2*3*3*7=504

Common factors between the two numbers are 2 and 3

The GCF(greatest common factor):

2×3 = 6

To see if it is true:

300/6 = 50

504/6 = 84

6 is the answer to the question.

6 0
3 years ago
Subtract 15 and 4 , double the difference, and then add two-thirds
mrs_skeptik [129]
15-4 = 11

11 x 2 = 22

22 + 2/3 = 68/3
3 0
3 years ago
Read 2 more answers
Ruth is making a necklace for a friend . she has 3 different types of clasps, 2 different chains , and 5 different cnarms. if sh
natita [175]
The answer I think  is D)30 because they want to know how many she can make so just multiple 5*2*3 
8 0
3 years ago
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