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3 years ago

. Halla la expresión algebraica de un

Mathematics

1 answer:

Assoli18 [71]3 years ago

3 0

Answer:

100*x + 14*y

Step-by-step explanation:

Tenemos que en el sistema decimal un número de 3 cifras se representa de este modo:

100*x + 10*y + z

También es llamado descomposición polinómica y de esta manera podremos encontrar la expresión algebraica.

Nos dicen la relación entre unidades y decenas, 4 veces mayor las unidades que las decenas, por lo tanto:

z = 4*y

Reemplazamos y nos queda:

100*x + 10*y + 4*y

reduciendo nos queda:

100*x + 14*y

Por lo tanto esta sería la expresión algebraica.

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3 years ago

If 50 grams of sweats cost $2.10,find the cost of 380 of sweats,giving your answer correct to the nearest 5 cent

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$15.95

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2 years ago

Mike is pouring a two foot cement sidewalk around the perimeter of his swimming pool. His swimming pool measures 6 feet by 14 fe

frosja888 [35]

9 inches * 1 foot / 12 inches
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3 years ago

Read 2 more answers

If 30% of a number, p, is 240, what is 72% of p? giving brainliest

Mnenie [13.5K]

Answer:

576

Step-by-step explanation:

30/ 100 x p = 240

p = 240 x 100/30 = 800

72/ 100 x p=

72/100 x 800 = 576

I hope im right!!

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2 years ago

Read 2 more answers

Charlie guesses that his dog weighs 34. 5 pounds. The dog actually weighs 32. 7 pounds. What is the percent error in Charlie’s g

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Percent error is the amount of error to actual value, in percent. The percent error in Charlie’s guess is approximately: Option D: 5.5%

<h3>How to calculate the percent error?</h3>

Suppose the actual value and the estimated values after the measurement are obtained. Then we have:

Error = Actual value - Estimated value

To calculate percent error, we will measure how much percent of actual value, the error is, in the estimated value.

$\rm Percent \: Error = |\dfrac{Error}{Actual value}|\times 100 \\\\Percent \: Error = | \dfrac{\text{(Actual Value - Estimated Value)}}{Actual value}|\times 100 \\$

(here |x| is such that it makes x non negative, thus, |-5| = 5, and |5| = 5)

For the given case, it is specified that:

Actual weight of dog = 32.7 pounds

Guessed weight of dog, by Charlie : 34.5 pounds.

Error = 32.7 - 34.5 = -1.8 pounds

Thus, percent error in Charlie's guess is calculated as:

$\text{Percent Error} = |\dfrac{-1.8}{32.7}| \times 100 \approx 5.5\%$

Hence, the percent error in Charlie’s guess is obtained approximately is given by: Option D: 5.5%

Learn more about percent error here:

brainly.com/question/25749180

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2 years ago