Answer:
3*4=12
Step-by-step explanation:
the answer is 12
To find out how many marbles Elliott has in total, we multiply the number of columns by the number of marbles in each column, resulting in 12 marbles in total.
To find out how many marbles Elliott has in total, we can multiply the number of columns by the number of marbles in each column. In this case, Elliott has 4 columns with 3 marbles in each column. So, we can calculate the total number of marbles by multiplying 4 and 3, which equals 12. Therefore, Elliott has 12 marbles in total.
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Answer:
To find the number of D's in the school, we can use the given ratio of D's to A's and the number of A's provided.
The ratio of D's to A's is given as 4 to 72. This means that for every 4 D's, there are 72 A's.
We are also given that there are 1080 A's in the school this term.
To find the number of D's, we can set up a proportion using the ratio:
4 D's / 72 A's = X D's / 1080 A's
Cross-multiplying, we get:
4 * 1080 = 72 * X
Simplifying further:
4320 = 72X
Dividing both sides by 72:
X = 4320 / 72
X = 60
Therefore, there were 60 D's in the school.
Step-by-step explanation:
Answer:
1.92 yd x 3.83 yd x 2.58 yd
Step-by-step explanation:
We have given a rectangular base, that its twice as long as it is wide.
It must hold 19 yd³ of debris.
Lets minimize the surface area, subject to the restriction of volume (19 yd³)
The surface is given by:
The volume restriction is:
replacing h in the surface equation, we have:
Derivate the above equation and set it to zero
The height will be:
Therefore,The dimensions that minimize the surface are:
Wide: 1.92 yd
Long: 3.83 yd
Height: 2.58 yd