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Lena [83]
4 years ago
11

What is a good science fair projects for 5th graders

Mathematics
1 answer:
tino4ka555 [31]4 years ago
8 0

I'm not sure of whether or not you're aware of this, but you asked this question in the math section. Nevertheless, I remember in 5th grade I did a project on whether or not it is possible to use solar energy to heat up different colored bags filled with water, and to determine which one would heat up the quickest. If that one doesn't pique your interest, you can go to sciencebuddies.com and search through a variety of project ideas if you'd like. That's where I found mine.

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Si yo tengo una canasta llena de mangos y piñas, de las cuales hay 30
skelet666 [1.2K]

Respuesta: Es más probable sacar un mango.

Explicación:

La probabilidad se refiere a la posibilidad de que un evento occura y no otro. En el caso que se describe, la probabilidad de sacar cada fruta puede ser calculada dividiendo el total de cada fruta en el número de frutas totales:

Probabilidad de sacar un mango:

\frac{cantidad de mangos}{cantidad de frutas en la canasta} =  \frac{30}{50}  =0.6

Probabilidad de sacar una piña:

\frac{cantidad de pinas}{cantidad de frutas en la canasta} = \frac{20}{50} = 0.4

De acuerdo a lo anterior la probabilidad de sacar un mango es de 0.6 o de 60% (multiplica la probabilidad por 100 para saber su equivalente en porcentaje), mientras que la probabilidad de sacar un mango es de 0.4 o 40% lo cual es mucho más bajo. Es decir que es más probable sacar un mango.

7 0
3 years ago
Please help me i need to turn it in
velikii [3]

Answer:

Step-by-step explanation:

2x2=4 divided by 2 =2

2x2=4

2x4=8

2+4+8=14

4 0
3 years ago
Read 2 more answers
A chemist needs 80 milliliters of a 50% solution but she only has 20% and 60% solutions available. Calculate how many milliliter
julia-pushkina [17]

We have 20% and 60% solutions and need 80 ml of 50%

A) x + y = 80

B) .20x + .60y = (80 * .5)

Multiplying A) by -.2

A) -.2x -.2y = -16  Then adding this to B) we get

.4y = 24

y = 60 ml of 60%

x = 20 ml fo 20%

Source: 1728.com/mixture.htm


5 0
4 years ago
Read 2 more answers
Contestant and like terms. What do they mean?
ICE Princess25 [194]

Answer:

Step-by-step explanation:

Like Terms: terms that have the same variable raised to the same power. So like 5x plus 5x plus 5. 5x and 5x are like terms.

I'm going to assume you mean Constant instead of contestant so

Constant: Terms without variables

Example: 5x+2x+7

5x and 2x are like terms

7 is a Constant

8 0
3 years ago
327.46 written in expanded form
Ivenika [448]
Expanded form is like this 300 plus 20 plus 7 plus .40 plus .6
3 0
4 years ago
Read 2 more answers
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