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sertanlavr [38]
3 years ago
14

I’ll give brainliest to first answer

Mathematics
1 answer:
Kay [80]3 years ago
8 0

Answer:

f^-1 (9) = 7 equals f = 9/7

Step-by-step explanation:

f^-1 x 9 = 7, f ≠ 0

1/f x 9 = 7

9/f = 7

9 = 7f

7f = 9

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If the tank is then field to capacity how many half-gallon bottles how many cords will it make?
lukranit [14]

Answer:

Divide 12 by 4 first to figure out how many gallons are in each 1/4 of the tank. 

12/4=3

So if I added another 1/4 to the capacity:

It could hold 15 gallons. 

All you have to do to find how many half bottles can be filled is to times 15 by two since we are filling half gallon bottles.

15x2=30

30 bottles.

6 0
3 years ago
What multiples to -52 but also adds to 24
ANTONII [103]

Answer:

-2 and 26

Step-by-step explanation:

-2*26=-52

-2+26=24

6 0
2 years ago
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vredina [299]
Maybe this will help! (:
https://youtu.be/1wPJfzStBqE
6 0
3 years ago
I need helpppp with 1-9
BigorU [14]
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3 0
2 years ago
If x varies directly with y and x = 6 when y = 15, find x when y= 20.
Kaylis [27]

Answer:

8

Step-by-step explanation:

Varies directly think y=kx

Varies indirectly think y=k/x

We have first option so y=kx

x=6 and y=15 means we have 15=k(6)

So k=15/6 or reducing gives=5/2

So we just found our constant of proportionality, this number never changes.  It stays the same no matter what x or y they give you...

So the equation is y=5/2 *x

Now what is x if y=20

Plug in 20=5/2 *x

So x=20*2/5=40/5=8

6 0
3 years ago
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