Complete the three-by-three magic square (that is,the sums of the numbers in each row, in each column and in each of the diagonals are the same) using

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Answer 1
Answer:

 

\displaystyle\n\text{We will use numbers from 1 to 9.}\n\n1+2+3+4+5+6+7+8+9=(9(9+1))/(2)=(9*10)/(2)=(90)/(2)=\boxed{\bf45}\n\n\text{the sums of the numbers in each row, in each column are }=(45)/(3)=\boxed{\bf15}\n\n\text{Solution:}\n\n\boxed{\,2\,}\boxed{\,7\,}\boxed{\,6\,}\n\boxed{\,9\,}\boxed{\,5\,}\boxed{\,1\,}\n \boxed{\,4\,}\boxed{\,3\,}\boxed{\,8\,}\n\n\text{Convenient rotation of the square gives 8 solutions.}


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Jill fish weight 8 times as much as her parakeet . Together they weigh 63 ounces how much does Jill fish weigh

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fish + parrot = 63 ounces

The task can be formulated differently. Weight is one fish and one parrot . We take fish scales . Instead of fish we put eight parrots. Weight will not change. So nine parrots weighs 63 ounces . One parrot is 1/9 , and one fish is 1 - 1/9 = 9/9 - 1/9 = 8/9

1/9 + 8/9 = 100% 63 ounces

63 ounces * 1/9 = 7 ounces    parrot
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PLEASE I NEED HELP WITH THIS PRE CALC WORKSHEET DUE TOMORROWcan someone explain me how to do this? I kinda don’t get it and i don’t know from where to start.
Please

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What is the ratio of inches to feet on a measuring tape

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the ratio of inches to feet wouldnt change if it was on a measuring tape :) it would still be 12 inches to every 1 foot ^-^

gwen has some amount of money. Let m represent the amount of money Gwen has. Then Gwen finds $5. Which expression shows how much money Gwen has now? a. 5m b. 5+m c. m-5 d. m/5

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the answer is a because when you find money you ADD that to your original amount of money

Stuart is buying a pair of jeans that regularly cost $40. They are on sale for 20% off. If the tax rate is 8%, what is the sale price of the jeans including tax?a. $21.60
b. $34.56
c. $42.34
d. $44.16

Answers

well first you want to add the sales tax which would be 8% of 40 which is 3.2. So it costs $43.2 without the discount. so then you want to find 20% of 43.2 which is 8.64. So the last step is to subtract 8.64 from 43.2 which is

43.2 - 8.64 = $34.56 is your answer

please mark brainliest if this helped
40$ x .20 or 20% = 8
40$ + 8 = 32$
32$ x .08 or 8% = 2.56 the tax rate
32$ + 2.56 = 34.56$ Price of jeans including tax.
B, is the answer

What is the inverse of the function f(x)= 15x+50/x+5

Answers

I think you mean

f(x) = (15x + 50)/(x + 5)

First, replace f(x) with y.

y = (15x + 50)/(x + 5)

Now, switch x and y.

x = (15y + 50)/(y + 5)

Now we solve for y.

x(y + 5) = 15y + 50

xy + 5x = 15y + 50

xy - 15y = -5x + 50

y(x - 15) = -5x + 50

y = (-5x+ 50)/(x - 15)

Now we replace y with f^(-1)(x).

f^(-1)(x) = (-5x+ 50)/(x - 15)