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aivan3 [116]
3 years ago
5

A wildlife reserve had 8 elephant calves born during the summer and now has 31 total elephants. How many elephants were in the r

eserve before summer began. Write an equation
Mathematics
1 answer:
Elza [17]3 years ago
6 0
Because you now have 31 you - 8 from 31
equation 31-8=e
solve 23 elephant before summer
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1. On the sixth grade field trip, there are 2 teachers for every
neonofarm [45]

Answer:

Divide 63/9=7

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2 years ago
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Un chip tiene un espesor de 0,12 mm y un atomo de cobre mide 0,00000000133 m.¿cuantos atomos se necesita para alinearlos en el e
aleksandr82 [10.1K]

Answer:

El espesor de un chip es de 0.12mm

Y el diámetro de un átomo de cobre, mide aprox:

0.00000000133 m

Queremos saber cuantos átomos deberemos alinear de tal forma que la "cadena" de átomos de cobre mida 0.12mm

Eso es equivalente a ver cuantas veces entra 0.00000000133 m en 0.12mm

Primero, escribamos ambos valores en las mismas unidades, sabiendo que:

1m = 1000mm

Podemos reescribir:

0.00000000133m = 0.00000000133*(1000 mm) = 0.00000133mm

Entonces tenemos que ver cuantas veces entra 0.00000133mm en 0.12mm

Esto sera igual al cociente entre 0.12mm y  0.00000133mm, esto es:

N = (0.12mm)/(0.00000133mm) = 90,225.6

Redondeamos al próximo número entero:

N = 90,226

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7 0
3 years ago
Find A. Round to the nearest tenth.
Marianna [84]

Answer:

27.8 degrees

Step-by-step explanation:

Wasn't it 'a,' not 'A,' that you wanted?

The ratio a/ 30 is the cosine of the angle 22 degrees, which in turn is 0.927:

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Then 0.927 = -------    which yields a = 30(0.927) = 27.8 degrees

                         30

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2 years ago
Please help me. i’ll give you brainliest points
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Step-by-step explanation:

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Answer:

The expression represents the amount of money in the bank account after the increase is: x=1.158n.

Step-by-step explanation:

With the information provided, you can say that the amount of money in the bank after the increase would be equal to multiplying the amount at the beginning of the year for the result of adding up 1 plus the percentage of the increase, which would be:

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x=1.158n, where:

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2 years ago
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