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olga_2 [115]
3 years ago
7

Abandoned mines frequently fill with water. Before an abandoned mine can be reopened, the water must be pumped out. The size of

pump required depends on the depth of the mine. If pumping out a mine that is D feet deep requires a pump that pumps a minimum of + 4D – 250 gallons per minute, pumping out a mine that is 150 feet deep would require a pump that pumps a minimum of how many gallons per minute?
362


500


800


1,250


1,750
Mathematics
1 answer:
nekit [7.7K]3 years ago
5 0

Answer:

350

Step-by-step explanation:

using the formula given

4D -250 substitute 150 for D

4(150)-250 = 350.

it's not shown? but it's the answer. unless there are pieces missing to the question.

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Alexxandr [17]

Answer:

Step-by-step explanation:

3.1x10 = 31, and 9x10=90, so the fraction is 31/90, whcih equals 3.44444444 . . .

4 0
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Quadrilateral ABCD is translated 6 units right and 5 units down to create quadrilateral EFGH. Determine the correct orientation
Vlad [161]

Try this suggested option (all the details are in the attachment), the correct orientation is marked with red and green colours.

P.S. The point C has coordinates: (3;1). If to traslate it 6 units right and 5 units down, then (3+6;1-5) ⇒ (9;-4). The same principle is for the others points A, B and D. Note, after translation point A is point E, B⇒F, C⇒G and D⇒H.

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2 years ago
Plzzz helppp!!<br> 9-4x=17????
AnnyKZ [126]

Answer:

<h3>\boxed{ \bold{ \boxed{ \sf{x =  - 2}}}}</h3>

Step-by-step explanation:

\sf{9 - 4x = 17}

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⇒\sf{ - 4x = 17 - 9}

Subtract 9 from 17

⇒\sf{ - 4x = 8}

Divide both sides of the equation by -4

⇒\sf{ \frac{ - 4x}{ - 4}  =  \frac{8}{ - 4}}

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6 0
3 years ago
Find the vertex of the graph of the function. f(x) = 2x^2 - 8x + 9
Rashid [163]

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5 0
3 years ago
Tickets to a school play cost $2 if bought in advance, and $3 if bought at the door. By selling all 400 of their tickets, $1030
Vitek1552 [10]

Answer:

230 were sold at the door

170 were sold in advance

Step-by-step explanation:

*i dont know if this is the proper way to do it but it has the correct answer

x=at door y=in advance

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y=-x+400

2y=-3x+1030

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x=230 y=170

4 0
3 years ago
Read 2 more answers
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