2 years ago

F(×)= 5×-10. What is the vaule of f^-1 (-3)

1 answer:

4 0

If I’m not mistaken I think this is what you’re asking for?

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ale4655 [162]

3 is to 5 as x is to 20
5 goes into 20 4 times so 3(4) gives you x
and x=12

4 0

2 years ago

Lilit [14]

Answer:b

Step-by-step explanation: I got it right on my test

4 0

2 years ago

Trava [24]

Answer:

The bus fair is 50% increases.

Step-by-step explanation:

The percentage is the proportion of the relation to the whole.

Percentage increase is calculate as ratio of difference of original and new value to the original value. i.e.

$\frac{ Percentage\ increase\ \ =\ \ new\ value - original \ value}{original\ \ value}$

∴ $\frac{ Percentage\ increase\ \ =\ \ 2.25 - 1.50 }{1.50}$

⇒ Percentage increase = 50%

3 0

3 years ago

blondinia [14]

Answer:

all equations will be like

y = a*x + b

a is just the slope and b is where the line intersects the y-axis (at x=0)

4 0

2 years ago

cricket20 [7]

First you add 3 and 8. This equals 11.
£132 / 11 = £12
£12 x 3 = £36
£12 x 8 = £96
So your answer is £36:£96

6 0

2 years ago