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lina2011 [118]
3 years ago
14

Can anyone heelp me pls

Mathematics
1 answer:
avanturin [10]3 years ago
7 0

Answer:

I think it's b.

Step-by-step explanation:

b. ,. ....

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What is the solution to the inequality 120+5|>1?
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n < − 3  or   n > − 2

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3 years ago
The molar mass of AlCl3 is 133.34 g/mol. How many molecules of AlCl3 are there in 2 g?
Mnenie [13.5K]

To solve this problem, we have to apply mole-concept to this and we would need the molar mass of AlCl3.  2g of AlCl3 contains 9.034*10^21 molecules.

<h3>Number of Molecules in 2g of AlCl3</h3>

The molar mass of AlCl3 is given as 133.34g/mol

Data;

  • mass = 2g
  • molar mass = 133.34g/mol

Using the mole concept, we can equate the molar mass to the number of molecules present in the entity.

133.34g = 6.023*10^2^3

If we equate this

133.34g = 6.023*10^2^3\\2g = x molecules\\x = \frac{2*6.023*10^2^3}{133.34} \\x = 9.034*10^2^1 molecules

From the calculations above, 2g of AlCl3 contains 9.034*10^21 molecules.

Learn more on mole concept here;

brainly.com/question/21150359

#SPJ1

5 0
2 years ago
GREG PUTS MONEY IN HIS DAUGHTERS PIGGY BANK EVERY DAY HE PUTS IN $0.75 BUT ON SUNDAYS HE PUTS IN $5.75 IF HE CONTINUES THUS FOR
Harman [31]

Greg's daughter will have $533 in her piggy bank in a year

The money in the piggy bank would increase everyday by the amount put in it. There are seven days in a week. If he puts $0.75 everyday apart from on Sundays when we puts $5.75, the amount that would be in the piggy bank in a week is the sum of the money deposited each day.

Total amount in a week = total amount deposited from Monday to Saturday + amount deposited on Sunday

  • Amount that Greg puts in 6 days : ($0.75 x 6) = $4.50
  • Amount deposited on Sunday = $5.75
  • Total amount =  $5.75 + $4.50 = $10.25

The total amount Greg's daughter would have in a year is a function of the number of weeks in year and the total amount saved in a week

Total amount in a year = number of weeks in year x the total amount saved in a week

  • Number of weeks in year = 52
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$10.25 x 52 = $533

In order to determine how much Greg's daughter would have in a year, first determine how much she would have in a week. Multiply this amount by the number of weeks in a year

A similar question was solved here: brainly.com/question/18614558?referrer=searchResults

7 0
2 years ago
Antoine and Tess have a disagreement over how to compute a 15% gratuity on $46.00. Tess says, “It is easy to find 10% of 46 by m
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Step-by-step explanation:it's B

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