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s344n2d4d5 [400]
3 years ago
11

It takes Jada 20 minutes to walk to school. It takes Andre 80% as long to walk to school. How long does it take Andre to walk to

school?
6th grade math
(20 points)
Mathematics
1 answer:
dsp733 years ago
7 0
I believe the answer is 100 minutes.
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A farmer makes two adjacent rectangular paddocks with 200 feet of fencing. a) Express the total area () in square feet as a func
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Answer:

A = (100 - y)y

Maximum area = 2500 sq. feet.

Step-by-step explanation:

Let the length of the combined rectangular area is y feet and the shared width is x feet.

So, perimeter of the two rectangle together is (3x + 2y) = 200 {Given}

⇒ 2y = 200 - 3x

⇒ y= \frac{1}{2} (200 - 3x) ...... (1).

a) Now, area of the total plot in sq. feet is A = xy = \frac{1}{2} (200 - 3x)x ........ (2)

So, this is the expression for area A in terms of length of shared side x.

b) For area to be maximum the condition is \frac{dA}{dx} = 0

Now, differentiating equation (2) on both sides with respect to x we get

\frac{dA}{dx} = 100 - 3x = 0

⇒ x = 33.33 feet.

So, from equation (1) we get y= \frac{1}{2} (200 - 3x)

⇒ x = 50 feet.

So, the value of maximum area = 50 × 33.33 = 1666.5 sq. feet. (Answer)

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The height of a tree increases by 60% each year. When planted the tree was 40cm tall.
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Answer:

Step-by-step explanation:

divide 60% divided by 40 and then X five

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For the function defined by:
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The first function is represented by the green line, while the second is represented by the orange line

<h3>What are piecewise functions?</h3>

Piecewise functions are functions that have at least 2 sub functions, each of which have different intervals

The function is defined by

f(x) = \left \{ {{x^2,\ x\le1} \atop {2x + 1,\ x > 1}} \right.

<h3>(a) Graph the first function</h3>

The first function in f(x) is defined by

f(x) = x^2, \ x \le 1

See attachment for the graph of the first function

<h3>(b) Graph the second function</h3>

The second function in f(x) is defined by

f(x) = 2x + 1, \ x > 1

See attachment for the graph of the second function

Read more about piecewise functions at:

brainly.com/question/18859540

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If GH = 3 and HJ = 5, then G ___ J.
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It will be less than

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