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Ray Of Light [21]
3 years ago
8

A building in a city has a rectangular base. The length of the base measures 65 ft less than three times the width. The perimete

r of this base is 950 ft. What are the dimensions of the base?
Mathematics
1 answer:
Archy [21]3 years ago
5 0

Answer:

The length of the base is 340 ft and the width of the base is 135 ft

Step-by-step explanation:

Let

x -----> the length of the base

y ----> the width of the base

we know that

The perimeter of the rectangular base is

P=2(x+y)\\P=950\ ft

so

950=2(x+y) -----> equation A

x=3y-65 -----> equation B

substitute equation B in equation A  and solve for y

950=2(3y-65+y)

475=(4y-65)

4y=475+65

4y=540

y=135

Find the value of x

x=3(135)-65=340

therefore

The length of the base is 340 ft and the width of the base is 135 ft

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3x + 5 = 14 what is x
serg [7]

Answer:

x = 3

Step-by-step explanation:

<u>Step 1:  Subtract 5 from both sides</u>

3x + 5 - 5 = 14 - 5

<em>3x = 9</em>

<u>Step 2:  Divide both sides by 3</u>

3x / 3 = 9 / 3

<em>x = 3</em>

Answer:  x = 3

3 0
3 years ago
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UNO [17]

Answer:

Y=-5/9X+7

Step-by-step explanation:

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3 years ago
Solve for x. Write both solutions, separated by a<br> comma.<br> 9x^2+ 3x – 2 = 0
kogti [31]

Answer:

x=1/3, x=-2/3

Step-by-step explanation:

9x^2 +6x -3x -2=0

6x and -3x add up to 3x. You need four terms to factor.

Then you factor=

3x(3x+2)-1(3x+2)=0

(3x-1)(3x+2)=0

Then you can make two equations

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3x-1=0

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So your answers are x=1/3, x=-2/3

hope this helps!

6 0
3 years ago
Whoever answers this gets 30pts
MakcuM [25]

i did the first four

1.7/9x^3/7

2.−2 2/5

3.−10 1/3

4. 24

hope this helps

5 0
2 years ago
Stuck on this one please help
Mashutka [201]

Answer:

3

Step-by-step explanation:

3^10= 3^7(x^3)

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Do the square root of 3 to both sides and you end up with x=3.

Hope this helped :)

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3 years ago
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