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3 years ago

A 5 ft. tall person cast a shadow 8 ft. in length. The person is standing 32

Mathematics

1 answer:

konstantin123 [22]3 years ago

5 0

Answer:

This question has insufficient information. Assuming that the person is standing at the tip of the tree's shadow, then the tree would be 8/5 * 32 feet, or 256/5 feet, or 51.2 feet.

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Un numero mas su doble es igual a su mitad mas quince ¿cual es el numero ?

n200080 [17]

For this case we have:

"One number plus its double equals its half plus fifteen, what is the number?"

x: Let the variable that represents the unknown number

According to the statement we have:

"One number plus its double" is represented as: $x + 2x$

"Its half plus fifteen" is represented as: $\frac {x} {2} +15$

Then we have the following expression:

$x + 2x = \frac {x} {2} +15$

We solve the equation:

$3x = \frac {x} {2} +15\\3x- \frac {x} {2} = 15\\\frac {6x-x} {2} = 15\\\frac {5} {2} x = 15\\5x = 30\\x = \frac {30} {5}\\x = 6$

So the number is 6

Answer:

$x = 6$

4 0

4 years ago

Find the limit of (sqrt(x+5)-4)/(x-11) as x approaches 11

Zanzabum

$\lim\limits_{x\to11}\dfrac{\sqrt{x+5}-4}{x-11}=\lim\limits_{x\to11}\dfrac{(\sqrt{x+5}-4)(\sqrt{x+5}+4)}{(x-11)(\sqrt{x+5}+4)}\\\\=\lim\limits_{x\to11}\dfrac{(\sqrt{x+5})^2-4^2}{(x-11)(\sqrt{x+5}+4)}=\lim\limits_{x\to11}\dfrac{x+5-16}{(x-11)(\sqrt{x+5}+4)}\\\\=\lim\limits_{x\to11}\dfrac{x-11}{(x-11)(\sqrt{x+5}+4)}=\lim\limits_{x\to11}\dfrac{1}{\sqrt{x+5}+4}=\dfrac{1}{\sqrt{11+5}+4}\\\\=\dfrac{1}{\sqrt{16}+4}=\dfrac{1}{4+4}=\dfrac{1}{8}\\\\Answer:\ d.\ \dfrac{1}{8}$

4 0

3 years ago

How many pounds of cashews that cost $14 per pound must be mixed with 5 pounds of peanuts that cost $6.50 per pound to make mixe

Fantom [35]

The amount of cashew mixed is 5 pounds

<h3>Word problem on total cost</h3>

Cost of 1 pound of cashew = $14

Cost of 1 pound of peanut = $6.50

Total cost of 1 pound of the mixed nuts = $10.25

Cost of 5 pounds of peanuts = 5 x $6.50

Cost of 5 pounds of peanuts = $32.50

Let the amount of cashew be x

Total cost of x cashew = 14x

Total amount of the mixed nuts = x + 5

Total cost of the mixed nuts = 10.25(x+5)

Total cost of the mixed nuts = 10.25x + 51.25

14x + 32.50 = 10.25x + 51.25

14x - 10.25x = 51.25 - 32.50

3.75x = 18.75

x = 18.75/3.75

x = 5

Therefore, the amount of cashew mixed is 5 pounds

Learn more on word problem on cost here: brainly.com/question/21405634

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2 years ago

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inessss [21]

Two plus two equal's

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3 years ago

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Help please...............

frozen [14]

Answer:

Sam made a mistake, and their correct value is 30.

Step-by-step explanation:

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