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miss Akunina [59]
3 years ago
9

gasoline gauge on a van initially read 1/4 full. when 10 gallons are added the gauge reads 3/4 full. how many more gallons for a

full tank
Mathematics
1 answer:
sasho [114]3 years ago
7 0
You need 5 more gallons for a full tank. 
Since it takes 10 gallons to increase the gauge from 1/4 to 3/4 (change of 2/4 which is the same as 1/2), it must have taken 10 gallons to fill up to halfway for the tank.  
Thus the full amount would be 10*2 = 20 gallons
However, since there is already 3/4 gasoline in the tank, we only need an extra 1/4 of 20 for it to be full. 
So, 20*1/4 = 5
We need to add 5 gallons for a full tank. 
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Answer:

See below.

Step-by-step explanation:

If the exponent is a/b  then a is the power and b is the value of the radical.

Example:   x^2/3  =   ∛x².    2 is the power and 3 is the radical.

Answers:

1)  7^2/3 =  ∛7²

5)  √3 = 3^1/2

9)  (∛27)⁴ = 27^4/3 =  3^4 = 81.

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3 years ago
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3 years ago
Which is the graph of f(x) = (x + 3)(x - 2​
yanalaym [24]

Answer:

Step-by-step explanation:

f(x) = (x + 3)(x - 2​) has two zeros:  One stems from (x + 3) = 0 and is (-3, 0); the other stems from (x - 2) = 0 and is (2, 0).  

The axis of symmetry is a vertical line located halfway between -3 and 2:  

x =  -1/2.

The graph opens up because the given (x + 3)(x - 2) has a positive leading coefficient (+1).

With this information we can eliminate the last two possible answers.  Note that the x-intercepts of the first graph are -3 and 2,  Thus, the first graph is the correct one.

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The following numerically ordered sequence of numbers has a mean of 17 and a median of 18.
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Cuanto costara alforbrar un cuarto de 12 pies de ancho por 15 de largo si la alfombra vale 20.80 la yarda cuadradas
liubo4ka [24]

Respuesta:

416

Explicación paso a paso:

El Área de la habitación:

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Área de la habitación = 180 pies²

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Costo total de la alfombra = 20.80 * 20 = 416

5 0
3 years ago
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