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Minchanka [31]
3 years ago
9

In a fruitsurvey 30 children choose their favorite fruit out of apples bananas and watermelon 10% shows up 30% shows bananas how

many children chose watermelon
Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
3 0

Answer: 40%

Step-by-step explanation:

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A store has a sale for 15% off. You want a jacket that was originally $45. How much
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es 51.75

Step-by-step explanation:

por que al sumar 45 + 15 porciento da 51.75

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Jon is making hamburgers for a church lunch. He has 42 2/3 lbs of ground beef . How many 1/3 pound hamburgers can he make using
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Which equation has the solution x=4?
ASHA 777 [7]
D.
Because 4 divided by 2 is 2
4 0
3 years ago
Read 2 more answers
Calculate the arithmetic sequence in which a9=17 and the common difference is d=-2.1
jek_recluse [69]

Answer:

S_{31}=71.3


Step-by-step explanation:

The nth term of an arithmetic sequence is given by the formula,

U_n=a_1+(n-1)d


We were given that the 9th term is 17.


\Rightarrow 17=a_1+(9-1)(-2.1)


\Rightarrow 17=a_1+(8)\times(-2.1)


\Rightarrow 17=a_1-\frac{84}{5}


\Rightarrow 17+\frac{84}{5}=a_1


\Rightarrow a_1=\frac{169}{5}


The sum of the first n-terms is given by the formula,


S_n=\frac{n}{2}(2a_1+(n-1)d)


To find S_{31}, we substitute n=31, a_1=\frac{169}{5} and d=-2.1.


\Rightarrow S_{31}=\frac{31}{2}(2(\frac{169}{5}+(31-1)(-2.1))


\Rightarrow S_{31}=\frac{31}{2}(2(\frac{169}{5}+(30)(-2.1))



\Rightarrow S_{31}=\frac{31}{2}(\frac{23}{5})


\Rightarrow S_{31}=\frac{713}{10}


\Rightarrow S_{31}=71.3


The correct answer is D















8 0
3 years ago
Read 2 more answers
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