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Vladimir [108]
2 years ago
7

One number axceeds by 12. The sum of the numbers is 34 what are the number

Mathematics
1 answer:
lys-0071 [83]2 years ago
8 0

Answer:

First number = x

Second number = x+12

Sum x+(x+12) =34

2x+12=34

2x=34-12

2x=22

x=11

(x+12) = 11+12=23

THe numbers are 11 and 23

Step-by-step explanation:


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The sum of two numbers is 125. Their difference is 47. The two numbers are:
enyata [817]

Answer:

39 and 86.

Step-by-step explanation:

39 and 86 equal 125 when added. When 47 is subtracted from 86 you get 39.

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Please help ASAP!!!!
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Step-by-step explanation:

Going down by each column it would be 7,17,24

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Type the correct answer in each box. Use numerals instead of words.
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Step-by-step explanation:

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2 years ago
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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Scorpion4ik [409]

Answer:

36 in

Step-by-step explanation:

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M= macaw

T= 2/3M

T= 24

24= 2/3M

72=2M

36= M

4 0
2 years ago
Read 2 more answers
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