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Nutka1998 [239]
3 years ago
6

A rental car agency charges a flat fee of $139.00 plus $30.00 per day to rent a certain car. Another agency charges a fee of $13

.00 plus $51.00 per day to rent the same car. Find the number of days for which the costs are the same. Round your answer to the nearest whole day.
Mathematics
1 answer:
Sveta_85 [38]3 years ago
5 0
139 + 30d = 13 + 51d
139 - 13 = 51d - 30d
126 = 21d
126/21 = d
6 = d

now lets check..
139 + 30d = 139 + 30(6) = 319
13 + 51d = 13 + 51(6) = 319

so on day 6, they will both cost $ 319

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Flo sets a goal of walking 12,000 total steps per day. flo's normal routine involves walking 6,000 steps per day. if flo walks 1
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She has to walk 60 minutes more to reach her goal.

Given: Flo sets a goal of walking 12,000 total steps per day. Flo's normal routine involves walking 6,000 steps per day.

To find: To Determine how many extra minutes should she walk per day beyond her normal routine?

Formula: Number of extra minutes = she walks per day beyond her normal routine / number of steps per minute

flo's normal routine involves walking steps per day= 6,000

If flo walks 100 steps per minute:

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Which equation results from adding the equations in this system? 11 x minus 3 y = -17. Negative 4 x + 3 y = - 18.
marta [7]

Answer:

Therefore the results from adding the equation in this system is

7x=-35

Step-by-step explanation:

Given:

Equations as

11x-3y=-17         .......................1

-4x+3y=-18         .......................2

To Find :

Result when adding equation 1 and 2 = ?

Solution

On adding equation 1 and 2 the "3y" term will get cancel and the like terms will combine that is add (11x and -4x ) and ( -17 and - 18)  as shown below

           11x     -    3y    = -17

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-------------------------------------------

           7x     + 0        =  - 35

---------------------------------------------

Therefore the results from adding the equation in this system is

7x=-35

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Step-by-step explanation:

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