The ratio is 5:3
It is asked for oatmeal
Therefore the ratio of the needed object (the oatmeal) is 3
Total ratio is 8 (5+3)
Total number (of cookies) is 40
Therefore,
3/8 ×40 = 15
Therefore the number of oatmeal cookies is 15
Given:
The volume of the rectangular prism is
Two dimensions are (x+1) and (x+3).
To find:
The missing dimension.
Solution:
We know that, volume of a rectangular prism is
It means, volume of a rectangular prism is the product of all dimensions.
We have,
Splitting the middle terms, we get
Splitting the middle term, we get
So, the three dimensions of the rectangular prism are (x+1), (x+3) and (4x-11).
Therefore, the missing dimension is (4x-11).
X = first child
x +2 = 2nd child
x+ 4 = 3rd child
It doesn't matter if the ages are odd or even - there is two years between each child in age.
The sum would be
x + x + 2 + x + 4 or 3x + 6.
Lets try it with a sample age. Let's say the youngest is 5 middle is 7 and oldest is 9
The sum of their ages is 21 (5 + 7 + 9)
Using our answer of 3x + 6 where x is the age of the youngest child, we get
3(5) +6 which is also 21.
This could also be solved by having x represent the middle age child
x-2 is the youngest (2 years less than the middle)
x = the middle
x+2 is the oldest (2 years older than the middle)
The sum of these would be x-2 + x + x +2 or simply 3x (the 2's cancel out)
Since the middle child is 7 3x would mean 3 (7)=21
You could also set this up using x for the oldest child
x= oldest
x-2= middle
x-4= youngest (The sum of this is 3x - 6)
3 (9) -6 is also 21.
Answer:
What's the question?
Step-by-step explanation:
Not enough information.