A bakery charges $14.00 for 4 croissant sandwiches. What is the unit rate?
1 answer:
Answer:
The unit rate is given as $3.5 per croissant sandwiches.
Step-by-step explanation:
The total charges are $14.00
There are 4 such croissant sandwiches.
<em>The unit rate is given as, A rate is a special ratio in which the two terms are in different units. When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates.</em>
Thus the unit rate is given as ,
=
Thus the unit rate is given as<em> $3.5 per croissant sandwiches.</em>
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Answer:
Max vol = 2 cubic metres
Step-by-step explanation:
Given that from a square piece of cardboard paper of area size 9 m2 , squares of the same size are cut off from each corner of the paper.
Side of the square = 3m
If squares are to be cut from the corners of the cardboard we have the dimensions of the box as
3-2x, 3-2x and x.
Hence x can never be greater than or equal to 1.5
V(x) = Volume =
We use derivative test to find the maxima
Equate I derivative to 0
If x= 3/2 box will have 0 volume
So this is ignored
V"(1/2) <0
So maximum when x =1/2
Maximum volume
= cubic metres