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borishaifa [10]
4 years ago
7

Three times as many robinsas cardinals visited a bird feeder. If a total of 20 robin and cardinals visited the feeder, how many

were robins
Mathematics
1 answer:
Agata [3.3K]4 years ago
4 0
X=# of cardinals
3 times as many robins as cardinals visited the feeder, so # of robins=3x
robins+cardinals=20, so x+3x=20
4x=20
x=5 cardinals
20-x=15 robins
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Adding/subtracting polynomials <br>​
Nuetrik [128]

Answer:

g(x) - h(x) =  { - x}^{4}  - 11x

Step-by-step explanation:

g(x) =  {6x}^{2}  - 4x +  {3x}^{4}

h(x) =  {6x}^{2}  + 4 {x}^{4}  + 7x

g(x) - h(x)

({6x}^{2}  - 4x +  {3x}^{4})  - ( {6x}^{2}  + 4 {x}^{4}  + 7x)

{6x}^{2}  - 4x +  {3x}^{4}   - {6x}^{2}   -  4 {x}^{4}   -  7x

( {3x}^{4}  -  {4x}^{4}) +  ( {6x}^{2}  - 6x {}^{2} ) + ( - 4x - 7x)

{ - x}^{4}  - 11x

6 0
3 years ago
A group of 50 friends meet for lunch. How many fist bumps are exchanged if each friend must fist bump with each of the 49 others
m_a_m_a [10]

If each of the 50 fist bump 499


7 0
3 years ago
Help with 10 please!
Alexus [3.1K]
Gabrielle is x years old.
Felicia is 6 years older.....so Felicia is x + 6
the mom is twice as old as felicia...so the mom is 2(x + 6)
the aunt is x years older then mom....so the aunt (tanya) is 2(x + 6) + x

so Tanya/s age is :
2(x + 6) + x =
2x + 12 + x =
13x + 12 <===
8 0
3 years ago
Help pleaseeeeeeeeeeeee
Andru [333]
Answer:
5. 1:3
6. Joe
8. 2/3 = 8/12
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8 0
3 years ago
Consider the following frequency distribution:
daser333 [38]

Answer:

        Relative frequency

        0.214

        0.268

        0.446  

        0.071

Total  1

Step-by-step explanation:

The relative frequency is computed by dividing the individual frequencies to the sum of frequencies.

sum of frequencies=12+15+25+4=56

Class     Relative Frequency

10-20       12/56=0.214

20-30      15/56=0.268

30-40      25/56=0.446

40-50      4/56=0.071

Total         12/56+15/56+25/56+4/56=56/56=1

8 0
4 years ago
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