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natita [175]
3 years ago
10

Male African elephants have an average length of 7.5 meters. What is the combined average length, in centimeters, of five male A

frican elephants?
Mathematics
1 answer:
Fed [463]3 years ago
5 0

Answer:

The combined average length of five male elephants is 3750cm

Step-by-step explanation:

1 elephant = 7.5m

5 elephants=?

We cross multiply.

5 * 7.5= 37.5m

So the average combined length of 5 male elephants is 37.5m

So we convert 37.5m to centimetres

Recall, 100cm = 1m

With this in mind, we convert 37.5m to cm by multiplying by 100

So, 37.5 x 100= 3750cm.

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You are designing a rectangular garden. the garden will be enclosed by fencing on three sides and by a house on the fourth side.
RUDIKE [14]
Suppose the dimensions of the rectangle is x by y and let the side enclosed by a house be one of the sides measuring x, then the sides that is to be enclosed are two sides measuring y and one side measuring x.

Thus, the length of fencing needed is given by

P = x + 2y

The area of the rectangle is given by xy,

i.e.

xy = 288  \\  \\  \\  \\ \Rightarrow y= \frac{288}{x}

Substituting for y into the equation for the length of fencing needed, we have

P=x+2\left( \frac{288}{x} \right)=x+ \frac{576}{x}

For the amount of fencing to be minimum, then

\frac{dP}{dx} =0 \\  \\ \Rightarrow1- \frac{576}{x^2} =0 \\  \\ \Rightarrow \frac{576}{x^2} =1 \\  \\ \Rightarrow x^2=576 \\  \\ \Rightarrow x=\sqrt{576}=24

Now, recall that

y= \frac{288}{x} = \frac{288}{24} =12

Thus, the length of fencing needed is given by

P = x + 2y = 24 + 2(12) = 24 + 24 = 48.

Therefore, 48 feets of fencing is needed to enclose the garden.
8 0
3 years ago
Explain what part 4 of the graph represents. Be sure to explain with the units given for
Goryan [66]
Hello good evening, friends, I want to ask a question of Lyophilized Medication medicines are considered reconstituted medications.
6 0
2 years ago
What number is 6% of 30?
rosijanka [135]

so you would do 6/100 *30/1 wich is 90/50 as a pecent is 180 an move the decimal place 2 times

<u>ANSWER</u> 1.8


3 0
3 years ago
Read 2 more answers
Lines AB and CD are straight lines. Find x and y. Give reasons to justify your solutions. I need both answers.
Kazeer [188]

Answer:

1) x = 14°, y = 5°

2) x = 18.5°, y = 37°

Step-by-step explanation:

1) ∠AOC and ∠BOD are vertical angles, then ∠BOD = 25°

∠MOD = ∠MOB + ∠BOD = 90°

3x + 23° + 25° = 90°

3x = 90° - 23° - 25°

x = 42°/3

x = 14°

∠LOB = ∠LOM + ∠MOB = 90°

5y + 3x + 23° = 90°

5y = 90° - 23° - 3(14°)

y = 25°/5

y = 5°

2) ∠AOC and ∠BOD are vertical angles, then ∠BOD = 16°

∠EOB = ∠EOD + ∠DOB =  90°

2y + 16° = 90°

y = (90° - 16°)/2

y = 37°

∠DOF = ∠BOF + ∠DOB =  90°

4x + 16° = 90°

x = (90° - 16°)/4

x = 18.5°

4 0
3 years ago
A stop sign that is 7 feet tall casts a shadow that is 8 feet long. Find the length of the shadow casted by a nearby 63-foot tal
NeTakaya

Answer:

72 feet is the answer. The shadow of the 63 ft tower.

7 0
3 years ago
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