# equation formula

#### skipjack

Forum Staff
The number of shares turns out to be 305.91 approximately.

1 person

#### Nollataulu

The number of shares turns out to be 305.91 approximately.
Lovely, I got it right then. :dance:

"
Two telephone lines are available. (A and B)

(Monthly fee).................(phone calls)
A 4 dollars/ month...........9 cents / min
B 4.90 dollars/ month.......7 cents / min

Construct an equation that solves the number of calls with the same price"

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#### skipjack

Forum Staff
Average number of calls per month = 45/(average number of chargeable minutes per call).

1 person

#### Nollataulu

Average number of calls per month = 45/(average number of chargeable minutes per call).
What kind of equation formula gives that answer?

#### skipjack

Forum Staff
The additional 45*2 cents for A per month then matches the 90 cents lower monthly fee.

#### Nollataulu

The additional 45*2 cents for A per month then matches the 90 cents lower monthly fee.
4,90x - 45 * 0,02 = 4,00

? x)

#### skipjack

Forum Staff
I don't see a need for x. What I was getting at was average usage = 45 chargeable minutes per month.

1 person