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Oksana_A [137]
2 years ago
11

Explain why it would be silly to write y is directly proportional to 3x

Mathematics
1 answer:
Orlov [11]2 years ago
4 0

Answer:

because 3 is a constant

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Write the slope intercept form of a line containing the y - intercept (0, -3) with a slope of –1.
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Answer:

y = -x - 3

Step-by-step explanation:

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2 years ago
In a science test. Devi scores 16 marks more than Ali. lf
sergeinik [125]

Let the marks of Devi be x and Ali be y.

So, the equations:

2y = x <em>and</em> y + 16 = x

So,

2y = y + 16. [ because we know equals are equal to equals]

=> 2y - y = 16

=> y = 16

Check

Ali's marks are half of Devi's marks.

Devi's marks are 16 more than alis.

So, Devi's marks will be 16×2 = 32 and 32 is 16 greater than 16 (16+16=32).

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3 years ago
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Step-by-step explanation:

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8 0
2 years ago
A boiler room has the shape of a rectangular prism. The area of the floor of the room is 112 square feet. The length of the room
Naddik [55]

Answer:

Length = 16 feet.

Width = 7 feet

Height = 8 feet

Volume = 896 cubic feet.

Step-by-step explanation:

There is a rectangular prism boiler room. 112 square feet is the floor area of the room.

Let the length of the room is L feet and width is W feet.

So, LW = 112 ...... (1)

Now, given that L = 2 + 2W ........ (2) , hence, from equation (1) we get  

(2 + 2W)W = 112

⇒ 2w + 2w² = 112

⇒ W² + W - 56 = 0

⇒ (W +8)(W - 7) = 0

⇒ W = 7 feet. {Neglecting the negative root as W can not be negative}

Hence, from equation (2) we get L = 2W + 2 = 16 feet.

Now, 1 foot more than the width is the height H.

Hence, H = 7 + 1 = 8 feet.

Therefore, the volume of the room is, V = LWH = 16 × 7 × 8 = 896 cubic feet. (Answer)

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3 years ago
What's the graph of y=3x-5​
Svetach [21]

Answer:

Step-by-step explanation:

6 0
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