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Kobotan [32]
3 years ago
12

Luke can paint 91 portraits in 7 weeks. How many portraits can Luke paint in 4 weeks?7

Chemistry
1 answer:
Arada [10]3 years ago
6 0
91/7 ?/4. 91×4 is 364 divided by 7 is 52. The answer is 52
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Gases in the atmosphere that trap solar energy
Korolek [52]

Answer:

d

Explanation:

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7 0
3 years ago
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How is kinetic energy related to the Kelvin scale?
IRINA_888 [86]
The Kelvin temperature of a substance is directly equal to the avg kinetic energy of particles of a substance. Hope that is what your looking for
8 0
3 years ago
What is the wave speed if the wave length is 8 and the frequency is 20
PilotLPTM [1.2K]

Answer:

160m/s

Explanation:

To find V Use the following formula V= F*W

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4 0
3 years ago
How can I find the answer for this ?
12345 [234]
For what? what is your question 
7 0
3 years ago
40 g of CaCO3 is how many moles of CaCO3?<br> 10 moles<br> 0.4 moles<br> 40 moles<br> 100 moles
AleksandrR [38]

Answer:

0.4 moles

Explanation:

To convert between moles and grams you need the molar mass of the compound. The molar mass of of CaCO3 is 100.09g/mol. You use that as the unit converter.

40gCaCO3* 1mol CaCO3/100.09gCaCO3 = 0.399640 mol CaCO3

This rounds to 0.4 moles CaCO3

8 0
3 years ago
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