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postnew [5]
4 years ago
5

The perimeter of a rectangular field is 60ft and its width is 20ft find the area of this field

Mathematics
2 answers:
exis [7]4 years ago
5 0

Answer:

Step-by-step explanation:

Gennadij [26K]4 years ago
4 0

Perimeter of rectangle = 2( length +width)

given: Perimeter=60 ft and width=20 ft

plugging these values in the formula,

60=2(20+ length)

dividing both sides by 2

30=20+length

length =30-20=10

length is 10 feet

width is 20 feet

Area of rectangle is given by:

Area = l*w

Area = 10 *20 = 200 square feet

Answer : Area of rectangle is 200 square feet.

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Consider the combined function. f(X) + g(X) = 9x + 4 . If f(x) = 4x - 3, find g(x)
Amanda [17]

Answer:

g(x)=5x+7

Step-by-step explanation:

f(x)+g(x)=9x+4

We are given f(x)=4x-3.

So we insert 4x-3 for f:

4x-3+g(x)=9x+4

Subtract 4x on both sides:

  -3+g(x)=5x+4

Add 3 on both sides:

       g(x)=5x+7

Check:

  f(x)+g(x)

=(4x-3)+(5x+7)

=(4x+5x)+(-3+7)

=(9x)     +(4)

=9x+4

Bingo. We did it! :)

6 0
3 years ago
Iki kişiden biri merdivenin 8. basamağında diğeri ise 20. ba-
Alex

Answer:

Hey bu dosnt mantıklı, İngilizce formatı var mı? anlayabilirsem yardım edebilirim.

Teşekkürler!!

Step-by-step explanation:

7 0
3 years ago
5. What is the equation of the graph below?
Alika [10]

Answer:

y=-4(x-2)²+2

Step-by-step explanation:

===================

4 0
3 years ago
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laiz [17]

Answer:

62

Step-by-step explanation:

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5 0
3 years ago
Read 2 more answers
At noon Joyce drove to the lake at 30 miles per hour. but she made the long walk back home at 4 miles per hour. How long did she
mars1129 [50]

Answer:

60 miles

Step-by-step explanation:

let d = distance to the lake

Using:  time = distance ÷ speed

Create expressions for the time it takes for each journey:

Drive:  t_1=\dfrac{d}{30}

Walk:   t_2=\dfrac{d}{4}

If total time = 17 hours

\implies t_1+t_2=17

\implies \dfrac{d}{30}+\dfrac{d}{4}=17

\implies \dfrac{17d}{60}=17

\implies 17d=1020

\implies d=\dfrac{1020}{17}

\implies d=60

Therefore she walked 60 miles

3 0
2 years ago
Read 2 more answers
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