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OLga [1]
3 years ago
6

How to do this question plz ​

Mathematics
1 answer:
grin007 [14]3 years ago
6 0

Answer:

4n+2

Step-by-step explanation:

n + (n + 2) + 2n = total \: amt \\  \\ 3n + n + 2 = total \: amount \\  \\ 4n + 2 = total \: amount

n = ann \\ n + 2 = beth \\ 2n = caitlin

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A rectangular park is 150 yards on one side and 125 yards on the other.
Ket [755]
So, there is a rectangular park with longer side (length) 150 yards and shorter side (width) 125 yards.

so walking around the rectangular park once is like covering the Perimeter (p) of the rectangular park.

So, lets find the perimeter of the park.
Perimeter of rectangle = 2 ( l + w)
                                    = 2 ( 150 + 125 )
                                    = 2 * 275
                                    = 550 yards

Now, walking around the park two times is like doubling the Perimeter of the rectangle. So, when Debbie walks around the park 2 times, he covers the perimeter of the rectangular field twice.

i.e. Debbie walked 2 * Perimeter
                               = 2 * 550
                               = 1100 yards

Now, If Debbie wanted to walk 1,000,000 yards, she has to walk the  rectangular park (1,000,000 / the Perimeter of the park)
         i.e.  1,000,000 / 550
             = 1818.18 times

So, 
(a) she walks 1100 yards
(b) She have to walk 1818.18 times
4 0
3 years ago
What is slope between the points (-5,7) and (4,-8)?
WINSTONCH [101]
The slope can sometimes be called the gradient, and the equation for the gradient is (y2 - y1)/(x2 - x1). So therefore, you'd do: (-8 - 7)/(4 - -5) which is (-15)/9) which is -1 2/3 or -1.6 (recurring), which is your answer. I hope this helps! Let me know if I've confused you :)
3 0
4 years ago
consider the equation a(4-x) =-3x + b What values of a and b make the solution of the equation x = -5
-BARSIC- [3]

Answer:

Step-by-step explanation:

hello :

put x = -5 in this equation : a(4-x) =-3x + b

a(4+5) =15 + b

9a = 15 +b

b = 9a - 15

the values of a and b is all order  pair :   ( a  ; 9a-15)  a real number

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2 years ago
A surveryor wants to know how many shoppers at a mall like to read books. He surveys 100 people coming out of a bookstore at the
bonufazy [111]
Yes it is biased aaaaaaaaaaaaaaaaaaaaaaaaaa
3 0
2 years ago
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Ummm can someone plsss help, i need this to bring my grade up!!?
artcher [175]

Answer:

I would say it would also be 64 degrees because if you flip the HGJ to the IJG it would be the same! Hope this helps

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3 years ago
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