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BARSIC [14]
3 years ago
15

GCF of 72 and 81 (pls show work 20 pts each)

Mathematics
2 answers:
Ostrovityanka [42]3 years ago
8 0

Answer:

9

Step-by-step explanation:

9x8 is 72

9x9 is 81

9x8

3x3x4x4

3x3x2x2x2x2

9x9

3x3x3x3

Firdavs [7]3 years ago
6 0

Answer:

GCF is 9

Step-by-step explanation:

72 can be broken down into 9 and 8

81 can be broken down into 9 and 9

The GCF is 9

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Which answer describes the calculations that could be used to solve this problem?
S_A_V [24]
The answer is B.
∴Explanation
3 bags of apples and 2 pounds of grapes,
1 bag of apple equals with 4 pounds of grapes 

1) We first multiply the 3 bags of apples with the 4 pounds that one bag equals with.
2) Then we add to the product in order to find the total pounds.

1] 3 x 4 = 12
2] 12 + 2 =14

Therefore the answer is B.
6 0
3 years ago
A number c decreased by 9 is less than or equal to 20 find c
kipiarov [429]
C-9<20

c=eleven or anything below
3 0
3 years ago
3. Factor.
sleet_krkn [62]
It seems that some the work is already here, but I'd be glad to!! So for #3 which is 9x^2+15x, we can factor out both a 3 and an x (3x) so we know that 3x * 3x =9x^2 and 3x * 5 = 15x so once we take the 3x out of the equation, we are left with 3x(3x+5) and that's as far as you can factor.
For #4, we see that the common factor is 10m because 10m * 2n = 20mn and 10m * 3 = 30m so once we take 10m out of the original, it becomes 10m(2n-3)
For #5, this one the common factor is 4xy because 4xy * 2xy=8x^2y^2 and 4xy*x= 4x^2y and 4xy*3=12xy so once we take the 4xy out of the equation, it becomes 4xy(2xy-x-3)
Hope this helps!
5 0
3 years ago
Help!!!! for just 3 but if you know 4 also then it’s on my page and I would appreciate the help
Rus_ich [418]
A quadratic equation is set up in the form of ax² + bx +c
First set equation = to 0
0= x² - 5x - 24
Next plug into quadratic formula( -b Plus or minus the √b²-4ac) ÷ 2a
[10 plus or minus √(25² - 4×1×24)] ÷ 2
Solve for inner parenthesis first 
√625- 96   = √529
Now set up two equations
(10 + √529) ÷2   = x   = 16.5
(10 -  √529) ÷2   = x   = -6.5 
So therefore x = 16.5 and -6.5



8 0
3 years ago
PLEASE HELP!! With explanation/solution please!!
Tema [17]

Step-by-step explanation:

Just sum the number of cows and buffaloes:

2p^2 - p + 4 + p^2 + p + 1 = 3p^2 +5 animals.

5 0
2 years ago
Read 2 more answers
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