3 years ago

Need help on this almost done

Mathematics

1 answer:

Margarita [4]3 years ago

5 0

Step-by-step explanation:

As shown in the picture, 3(x + 7) = (x + 7) + (2x - 7) + x.

So 3x + 21 = 4x. This means that x = 21.

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in a single elimination tournament starting with 128 teams, half of the remaining teams are eliminated in each round. a) make a

r-ruslan [8.4K]

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5 0

3 years ago

PLEASE HELP

Alexus [3.1K]

Answer:

x=1

y=0

Step-by-step explanation:

(x-1)=-2x+2

3x-1=2

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3 years ago

Read 2 more answers

A gardener has 640 feet of fencing to fence in a rectangular garden. One side of the garden is bordered by a river and so it doe

kari74 [83]

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Answer:

160 ft (out from the river)
320 ft (parallel to the river)

Step-by-step explanation:

Let x represent the length of fence parallel to the river. Then the dimension of perpendicular to the river will be half the remaining fence: (640-x)/2. The total area will be ...

A = x(640-x)/2

This is the equation of a parabola that opens downward. It has zeros at x=0 and x=640, so its axis of symmetry is x = (0+640)/2 = 320. That is, the peak of the area curve is found when x=320.

The dimensions of the garden with the largest area are 160 ft wide by 320 ft long, where the long side is the river side.