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s2008m [1.1K]
4 years ago
13

Explain why primary grade children should not be rushed into working with fraction and decimal notation?

Mathematics
1 answer:
stira [4]4 years ago
3 0
Primary grade children should not be rushed into working with fraction and decimal notation, [ because accordingly young children have a natural understanding and interest in parts and in wholes it can be used later as a bridge in learning fraction and other ways of breaking up whole numbers. 
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You’re working in a pharmacy, and are making a table to help with dosage amounts for a certain drug. The recommended dosage is 4
Sergeu [11.5K]

Answer: The children weighing 10 pounds, 15 pounds and 30 pounds require 12 teaspoons , 18 teaspoons, 36 teaspoons respectively.

Step-by-step explanation:

Given, The recommended dosage is 40 milligrams per 2.2 pounds of body weight, divided into three daily doses and taken every 8 hours.

i.e. for 1 pound of body weight required dosage per day= \dfrac{40}{2.2}=18.18\ ml

Each dose consist = \dfrac{18.18}{3}=6.06\ ml drug.

so, 1 pound of body weight required 6.06 ml for each dose.

Then, 10 pounds of body weight require 10 x 6.06 ml drug= 60.6 ml

If 1 teaspoon = 5 ml,  then 10 pounds of body weight require (60.6 ml ÷5) = 12.12 ≈12 teaspoons.

15 pounds of body weight require 15 x 6.06 ml drug= 90.9 ml

Then 15 pounds of body weight require (90.9 ml ÷5) = 18.18≈18 teaspoons.

30 pounds of body weight require  30 x 6.06 ml drug= 181.8 ml

Then  30 pounds of body weight require (181.8 ml ÷5) = 36.36 ≈ 36 teaspoons.

Hence, the children weighing 10 pounds, 15 pounds and 30 pounds require 12 teaspoons , 18 teaspoons, 36 teaspoons respectively.

7 0
3 years ago
Mcd de 120 , 160 , 180 , 200 paso por paso (el que responda le doy corona)
olga55 [171]

Answer:

The Highest Common Factor is 20

Step-by-step explanation:

Aquí le mostraremos paso a paso como hallar el Máximo Común Divisor de 120 y 180. (mcd de 120 y 180) Paso 1: Creamos una lista de todos los divisores de 120, que incluye 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, y 120. Paso 2: Siguiente, creamos una lista de todos los divisores de 180, que incluye 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, y 180. Paso 3: Finalmente, comparamos las listas de Paso 1 y Paso 2 y hallamos que el mayor número que tienen en común es 60. Esto significa que el Máximo Común Divisor de 120 y 180 es 60. MCD de 120 y 180 = 60

4 0
3 years ago
No, that does not make sense. When you subtract, you add the opposite. That means you’re adding two positive numbers. When you a
Klio2033 [76]
Another way of saying this is two negatives make a positive right?..
4 0
4 years ago
A) 20 milligrams of the drug lincomycin is to be given for each kilogram of a person's weight the drug is be mixed with 250 cc o
krok68 [10]

Answer:

you need to convert pounds to kilograms. 196 pounds is 88.904 kilograms. The directions tell you that 20 milligrams of the drug is to be administered for each kilogram of a person's weight. Now you need to multiply 88.904 by 20. That should give you 1778.08 milligrams of lincomycin. You would then mix 250 cc's of saline solution to the 1778.08 milligrams of lincomycin; but I think its just asking you how much lincomycin to administer.

at what rate per minute should the 250 cc solution be adminstered

4 0
4 years ago
Fred earns $16.50 an hour for overtime. He worked overtime on Monday
vredina [299]

Answer: He worked for 3 1/2 hours on Thursday

Step-by-step explanation:

I subtracted 66 from 123.75 and then i was left with 57.75 and then i just added 16.50 until i was close and then added the 8.25

5 0
3 years ago
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