3 years ago

What fractions is not equivalent too 4/7

Mathematics

1 answer:

madreJ [45]3 years ago

3 0

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Aidan has 20 ft of fence with which to build a rectangular dog run. What is the maximum area he can enclose? Enter your answer i

irina1246 [14]

<h2>Maximum area is 25 m²</h2>

Explanation:

Let L be the length and W be the width.

Aidan has 20 ft of fence with which to build a rectangular dog run.

Fencing = 2L + 2W = 20 ft

L + W = 10

W = 10 - L

We need to find what is the largest area that can be enclosed.

Area = Length x Width

A = LW

A = L x (10-L) = 10 L - L²

For maximum area differential is zero

So we have

dA = 0

10 - 2 L = 0

L = 5 m

W = 10 - 5 = 5 m

Area = 5 x 5 = 25 m²

Maximum area is 25 m²

7 0

3 years ago

Please help, must be done by today

Ostrovityanka [42]

The answer is -5x + 4y = -20

8 0

3 years ago

5. The students are trying to determine the distance between two particular

natali 33 [55]

Answer:

The actual distance between the cities is 211.67 cm.

Step-by-step explanation:

Given:

The map key indicates that 4.5 cm is equivalent to 75 cm.

Now, to find the actual distance between the cities if the cities are 12.7 cm apart on the map.

Let the actual distance be $x$ .

So, we set a proportion to find the actual distance:

4.5:12.7 = 75:x.

<em>Changing into fractions.</em>

$\frac{4.5}{12.7} =\frac{75}{x}$

<em>By cross multiplication we get:</em>

$4.5x=952.5$

<em>Dividing both sides by 4.5 we get:</em>

$x=211.67$

Therefore, the actual distance between the cities is 211.67 cm.

8 0

3 years ago

Find the area of a regular octagon with

vodka [1.7K]

Answer:

Step-by-step explanation:

Area=2(1+ $\sqrt{2}$ )8²

=309.0(round to nearest tenth)

5 0

2 years ago

HELP PLS !!!!<br> A square with side of k cm has perimeter of 36 cm. find the value of k.

katrin [286]

You would find it by

4 0

2 years ago