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Anastasy [175]
3 years ago
11

What is two and one half divided by eight?

Mathematics
1 answer:
borishaifa [10]3 years ago
6 0
The answers is 0.3125
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Biologists use a formula to estimate the mass of a
balu736 [363]

Answer:

The approximate mass of the brain of a mouse is 2 grams

Step-by-step explanation:

The correct question in the attached figure

Let

B -----> the  approximate mass B of the brain in grams

m ----> the mass of a  mammal's brain in grams

we know that

B=\frac{1}{8}m^{\frac{2}{3}} ----> given problem

we have

m=64\ g

substitute in the formula above

B=\frac{1}{8}(64)^{\frac{2}{3}}

Remember that

(64)^{\frac{2}{3}}=\sqrt[3]{(64)^2}=\sqrt[3]{(4^{3})^2}=\sqrt[3]{(4^{6})}=4^{2}=16

B=\frac{1}{8}(16)\\\\B=2\ g

6 0
3 years ago
Due in 5 min please help thank you
NISA [10]

Answer:

dam the number too small

Step-by-step explanation:

6 0
4 years ago
Read 2 more answers
Como hago para calcular el porcentaje de unos datos agrupados , porfa ayuda no entiendo. osea tipo : tengo que calcular cual es
KatRina [158]

Answer:

Falta información para darte una respuesta exacta, así que voy a dar una explicación general de este tipo de problemas.

Querés saber cuál es el porcentaje de personas que trabajan y están en el rango de edades entre 31 y 46.

Entonces lo primero que tenemos que hacer es encontrar el número total de personas que trabajan, digamos que es T (esto es el 100%)

Luego hay que encontrar el número total de personas que trabajan y tienen entre 31 y 46, digamos que es N.

Podemos relacionar estas cantidades con porcentajes de la siguiente manera:

N = P

T = 100%

Donde P es el porcentaje que queremos calcular.

Si tomamos el cociente de esas dos ecuaciones, obtenemos:

N/T = P/100%

Resolviendo para P obtenemos:

(N/T)*100% = P

El porcentaje de personas que trabajan y tienen entre 31 y 46 va a ser entonces:

P = (N/T)*100%

Así sabiendo el número total de personas que trabajan y el número de personas que trabajan y además tienen edades entre 31 y 46, podemos calcular el porcentaje que queremos.

Particularmente decis que no sabes si colocar 3% o 4%.

Lo que podria implicar que tambien quizas tengas un problema de redondeo.

Si tenes un numero como:

3.a%

donde a es un digito entre 0 y 9

si a es menor que 5, entonces redondeamos para abajo, y asi obtenemos:

3.a% = 3%

si a es igual a 5 o mayor, redondeamos para arriba, asi obteniendo:

3.a% = 4%.

4 0
3 years ago
How to solve this equation ​
yawa3891 [41]

Answer:

There were 15 fans that were wearing hats

Step-by-step explanation:

4 0
3 years ago
Find the value of x.<br> A) 71 <br> B) 72 <br> C) 73 <br> D) 75<br><br> -39 + x ) 146
TEA [102]
The equation doesn't make any sense. Does that parenthesis mean an equal sign? Also, none of the answer choices applies to the actual answer. To find the x, you need to add 39 with 146...
7 0
4 years ago
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