Answer:
The correct option is B. two oxygen atoms
Step-by-step explanation:
The molecular formula for carbon dioxide is given by :
Here, the alphabet C stands for Carbon and the alphabet O stands for Oxygen.
And the prefixes of each of these words represents the number of atoms present of the corresponding element in one molecule of carbon dioxide.
So, The prefix of the first word that is C is 1
⇒ One molecule of carbon dioxide contains one atom of Carbon.
The prefix of the second word that is O is 2
⇒ One molecule of carbon dioxide contains 2 atoms of Oxygen.
Therefore, The correct option is B. two oxygen atoms
Answer:
Even [ 10 is even ] ( 50 ÷ 5 = 10 )
Answer:
The distance is 88 units
speed = 11 units per minute
Step-by-step explanation:
To find the distance, take the second point and subtract the first point
-100 - (-12)
-100+12 = -88
Distance is the number (direction is positive or negative)
The distance is 88 units
To find the speed, take the distance and divide by the time
speed = 88 units / 8 minutes
speed = 11 units per minute
Answer:
The height of Julio greater than the height of Frieda .
Step-by-step explanation:
Given height as :
The height of Frieda = 5
ft
The height of Julio = 5
ft
So, The height of Frieda = 5
= 5 +
= 
= 
feet
∴ The height of Frieda = 5.25 feet
And The height of Julio = 5 ft
So, The height of Julio = 5
= 5 +
= 
= 
feet
∴ The height of Julio = 5.83 feet
Since 5.83 feet 
5.25 feet
So the height of Julio the height of Frieda
Hence The height of Julio greater than the height of Frieda . Answer
Answer: price of soda (a) = $2 and price of popcorn (b) = $0.5
Step-by-step explanation:
Let's denote soda = a and popcorn = b
Kaylin bought a soda and two popcorn, writing out an equation for this would be
a + 2b = $3...........equation (i)
And her brother bought 3 sodas and 1 popcorn.
3a + b = $6.50..........equation (ii)
From equation (i),
a + 2b = 3
Making a the subject of formula,
a = 3 - 2b......equation (iii)
Using substitution reaction, put equation (iii) into equation (ii)
3(3 - 2b) + b = $6.50
9 - 6b + b = 6.50
9 - 5b = 6.50
Collecting like terms,
5b = 9 - 6.50
Divide both sides by 5,
b = 5.
Put b = 5 into equation (i)
a + 2(0.5) = 3
a + 1 = 3
a = 2
Therefore, the price of soda is $2 per one and $0.5 for each popcorn.
