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Vikki [24]
3 years ago
5

Hi everyone,Can someone please explain me these I am confused I really need help if you can help please help me.

Mathematics
2 answers:
Scorpion4ik [409]3 years ago
8 0

Answer:

36

Step-by-step explanation:

Just add the students with doing this: number of studentsxsiblings

g100num [7]3 years ago
7 0

Answer:

For number one count all dots and for two start counting from 4 siblings

Step-by-step explanation:

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The first step you would take would be multiplying 5x2
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3 years ago
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What are ascending number's​
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Answer: Hello, Ascending Order. Ascending Order. Arranging numbers (or other items) in ascending order means to arrange them from smallest to largest. Example 1 (with Numbers) The numbers 12, 5, 7, 10, 1, 160 arranged in ascending order are 1, 5, 7, 10, 12, 160.

Step-by-step explanation:

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2 years ago
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What is the mass of 2.5 moles of carbon dioxide?
GarryVolchara [31]

Answer:

110 grams

Step-by-step explanation:

CO2 molecule is made up of Carbon (atomic mass =12) and oxygen (atomic mass=16).

So first finding the mass of 1 molecule of CO2 which is equals to

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= 12+(16*2)= 12+32= 44 a.m.u.

Now 1 molecule of CO2 has mass 44 amu so mass of 1 mole CO2 will be 44 grams.( 1 a.m.u.=1.6729*10^-33 grams. 1 mole = 6.022*10^23, so 44 a.m.u.=73.6076*10^-33 grams approx. For one mole CO2, 73.6076*10^-33*6.022*10^23 which is approximately equals to 44 grams. )

1 mole CO2= 44grams, so 2.5 moles = 44*2.5= 110 grams

So our answer is 110 grams.

lowkey hope this helped you, good luck whatever you need it for Imaooo

3 0
2 years ago
Solve this system of equations using elimination. <br> X-6=-17<br> -2x+12y=7
AfilCa [17]

Answer:

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Point Form:

(−11,−5/4)

Equation Form:

x=−11,y=−5/4

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2 years ago
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That is 4 terms long. 
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3 years ago
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