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kondor19780726 [428]
3 years ago
12

A garden measuring 10 meters by 7 meters is going to have a walkway constructed all around the perimeter, increasing the total a

rea to 130 square meters. What will be the width of the pathway?
Mathematics
1 answer:
SashulF [63]3 years ago
5 0

The width of the pathway is 3m

Step-by-step explanation:

Let the width of the pathway be 'w'

The area will be 130 square meters

The dimensions of the garden is 10 x 7

Area = (10+w) (7+w)

130 = 70 + 17w + w^2

w^2 + 17w - 60 = 0

w^2 +20w - 3w - 60 = 0

w ( w + 20) - 3 ( w + 20) = 0

(w + 20) (w - 3) = 0

w = -20 ( or) w = 3

w is the width and cannot be negative.

So, w = 3 meters

The width of the pathway is 3m

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Answer:

g(x) - f(x) = -14x - 3

Step-by-step explanation:

We need to subtract the function f(x) = 9x + 4 from the function g(x) = -5 + 1.  Rewriting these two functions in columns, we get

       g(x)= -5x+1

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--------------------

g(x) - f(x) = -14x - 3

6 0
3 years ago
If you place a 20 ft ladder 4ft from the base of the wall. How high up will it reach? Round answer to the nearest tenth
xeze [42]

Answer:

h = 19.6 ft

Step-by-step explanation:

Given that,

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The height of the ladder, H = 20 ft

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Using Pythagoras theorem,

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or

P = 19.6 ft

So, the height is 19.6 ft.

7 0
3 years ago
7. The graph shows the height, h, in feet, of water
MariettaO [177]

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3 years ago
Alina and Asim share Rs 210 in the ratio 2:5. How much money did each of them get?
slavikrds [6]

Answer:

Step-by-step explanation:

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