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makkiz [27]
2 years ago
15

The average of 8 people in a golf club is 44. A ninth person joins the club and the new average of the golf club is 47. What is

the age, in years, of the ninth person?
Mathematics
1 answer:
PSYCHO15rus [73]2 years ago
5 0

Answer:

41 year old

Step-by-step explanation:

Suppose x is the total age before the ninth person joins. x/8=44 then the new persons age is a then x+a/9=47 so you subsitute x=352 then (352+a)/9=47 then 352+a=393 so we find a=41

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-114=-5x-2(4x+18)<br> ????????
SVETLANKA909090 [29]

Primeiro multiplica o -2 com tudo que tem dentro do parenteses (chuveirinho)  -114 = -5x -2(4x+18)

-2 . 4x = -8x        +     -2 . 18 = -36        =   -8x-36


Agora soma os números com incógnitas (no caso x)

-114 = - 5x - 8x -36    


Joga a incógnita do outro, tornando positiva

-114 = -13x - 36            

13x -114 = -36


e o 114 do outro lado, ficando positiva também  

13x -114 = -36

13x  = - 36 + 114

13x = 78

x = 78 /13

x= 6


ESPERO TER AJUDADO :)


8 0
3 years ago
Farmers Bob ,Joe and Larry sold apples at the farmers market .Bob sold 86 apples .Joe sold 12 times as many as Bob .Larry sold h
kotykmax [81]

Answer:

Altogether they sell <u>1634</u> apples.

Step-by-step explanation:

GIven:

Bob, Joe and Larry sold apples at the farmers market.

<u><em>Bob sold 86 apples. </em></u>

<u><em>Joe sold 12 times as many as Bob. </em></u>

<u><em>Larry sold half as many apples as Joe. </em></u>

Now, to find the total apples Bob, Joe and Larry they all sell together.

<u>Number of apples Bob sold</u> = 86.

<u>Number of apples Joe sold</u> = 12 times of 86.

=12\times 86\\\\=1032.

<u>Number of apples Larry sold</u> = \frac{1}{2}\ of\ 1032

=\frac{1}{2} \times 1032

=516.

Now, to get the apples they sell altogether we add the number of apples sold by Bob, by Joe and by Larry:

86+1032+516

=1634.

Therefore, altogether they sell 1634 apples.

7 0
3 years ago
Express the sum of each pair of numbers as a product of the greatest common factor of the numbers and another sum.
Sonbull [250]
9) 147
10) 145
greatest common factor is 14 I think
8 0
3 years ago
What is the equation in point slope form of the line that passes through the point (1, −2)and has a slope of 3? y+1=3(x−2) y−1=3
iogann1982 [59]

Answer:

Step-by-step explanation:

y + 2 = 3(x - 1) is the point slope form

3 0
3 years ago
Round the quantity to the given place value 13.989 to the nearest ten
mixer [17]

Answer: no answer

Step-by-step explanation

sorry no answer bye

7 0
3 years ago
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