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fredd [130]
2 years ago
6

Please help me Will give you brainly

Mathematics
2 answers:
Ket [755]2 years ago
8 0

9514 1404 393

Answer:

  a) y = -18x +200

  b) 38 gallons

Step-by-step explanation:

<h3>a)</h3>

The slope formula can be used to find the slope:

  m = (y2 -y1)/(x2 -x1)

  m = (110 -137)/(5 -3.5) = -27/1.5 = -18

The y-intercept can be found from ...

  b = y -mx = 110 -(-18)(5) = 200

The slope-intercept equation describing the relation is ...

  y = -18x +200

__

<h3>b)</h3>

After 9 hours, the amount of gas remaining is ...

  y = -18(9) +200 = -162 +200 = 38 . . . gallons remaining

AysviL [449]2 years ago
4 0

Answer:

jgdrgj u er gotta run if f c vbjt q r7ijhgf

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A cement walkway of uniform width has been built around an in-ground rectangular pool. the area of the walkway is 1344 square fe
Elza [17]

Answer:

6 feet.

Step-by-step explanation:

Dimensions of the Pool =80 feet long by 20 feet wide

Area of the walkway =1344 square feet.

If the width of the walkway=w

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  • Width of the Larger Rectangle =20+2w

Area of the Walkway =Area of the Larger Rectangle - Area of the Pool

1344=(80+2w)(20+2w)-(80*20)\\1344=80*20+160w+40w+4w^2-80*20\\4w^2+200w=1344\\4w^2+200w-1344=0\\We factorize\\4(w^2+50w-336)=0\\4(w^2-6w+56w-336)=0\\w(w-6)+56(w-6)=0\\(w-6)(w+56)=0\\w-6=0$ or $ w+56=0\\w=6$ ft or $ w=-56$ \\Therefore, the width of the walkway , w=6 feet.

6 0
3 years ago
PLEASE HELP!! <br> Let g(x) = -5x + 2 I’m confused
lina2011 [118]

Answer:

7

Step-by-step explanation:

We need to plug in -1 for x. Here's what we get:

-5(-1)+2     multiplying two negative numbers gives us a positive number

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4 0
3 years ago
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How would the solution of the inequality 3/7 (35x - 14) ≤ 21x/2 + 3 be graphed on a number line?
Mashcka [7]

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Step-by-step explanation:

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2 years ago
Find the area of the figure.
Otrada [13]

Answer:

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Step-by-step explanation:

The figure shows a triangle whose;

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We are supposed to get its area;

Area of a triangle is given by the formula;

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Hence, the area of the figure is 20 square units

8 0
3 years ago
Renee tossed 12 heads when tossing a coin 18 times.
Nadya [2.5K]
So,

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\frac{12}{18} --\ \textgreater \   \frac{2}{3}

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