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Illusion [34]
3 years ago
6

Jorge's rectangular garden was 17 feet long and had a perimeter of 54 feet. He made his garden 5 feet longer. What is the area o

f his new garden?
A.
85 square feet

B.
64 square feet

C.
220 square feet

D.
22 square feet
Mathematics
2 answers:
antiseptic1488 [7]3 years ago
5 0
Total= 54 feet
17+ 5 = 22 feet
Area= 22 feet bruh!
Sonbull [250]3 years ago
5 0

22 square feet. have fun brother

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A square building with an area of 225 m2 has a garden surrounding it that has an equal width on all sides. The area of the garde
xenn [34]

Answer:

The width of the garden is 1.16 m

Step-by-step explanation:

step 1

<em>Find the area of the garden</em>

To find out the area of the garden multiply by 1/3 the area of the building

225(\frac{1}{3})=75\ m^2

step 2

Find the length side of the square building

The area of a square is

A=b^2

where

b is the length side of the square

we have

A=225\ m^2

so

b^2=225\\b=15\ m

step 3

Find the width of the garden

Let

x ----> the width of the garden

we know that

The area of the building plus the area of the garden is equal to

(15+2x)^2=225+75

solve for x

225+60x+4x^2=225+75\\4x^2+60x-75=0

Solve the quadratic equation by graphing

using a graphing tool

The  solution is x=1.16 m

see the attached figure

therefore

The width of the garden is 1.16 m

Find the exact value

The formula to solve a quadratic equation of the form ax^{2} +bx+c=0

is equal to

x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}

in this problem we have

4x^2+60x-75=0  

so

a=4\\b=60\\c=-75

substitute in the formula

x=\frac{-60\pm\sqrt{60^{2}-4(4)(-75)}} {2(4)}

x=\frac{-60\pm\sqrt{4,800}} {8}

x=\frac{-60\pm40\sqrt{3}} {8}

x=\frac{-60+40\sqrt{3}} {8}\ m  ----> exact value

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Runner is compared with the world record
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Answer:

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Step-by-step explanation:

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1348 rounding to the nearest thousand
umka2103 [35]

1000 since the 348 in 1348 is closer to 1000 than 2000

7 0
4 years ago
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Please I need to have this done in less then 40 min
SSSSS [86.1K]

Answer: first blank is 4/25.

second blank on the top row is 16:100=4:25.

First blank on the second row is 13/50.

The second blank on the second row is 26:100=13:50.

The first blank on the third row is 33:50.

The first blank on the fourth row is 4/7.

The second blank on the fourth row is 57%.

The third blank is 0.57.

Step-by-step explanation:

16/100 simplified is 4/25. 16÷4=4 100÷4=25

ratios are also fractions.

26/100 simplified is 13/50. 26÷2=13 100÷2=50

66/100 simplfied is 33/50. 66÷2=33 100÷2=50

4÷7(rounded down)=0.57


6 0
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What is 30 over 75 in simplest form
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30 over 75 is equal to 2/5

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