9514 1404 393
Answer:
$2.50
Step-by-step explanation:
The question asks for the total cost of a notebook and pen together. We don't need to find their individual costs in order to answer the question.
Sometimes we get bored solving systems of equations in the usual ways. For this question, let's try this.
The first equation has one more notebook than pens. The second equation has 4 more notebooks than pens. If we subtract 4 times the first equation from the second, we should have equal numbers of notebooks and pens.
(8n +4p) -4(3n +2p) = (16.00) -4(6.50)
-4n -4p = -10.00 . . . . . . . . . . . simplify
n + p = -10.00/-4 = 2.50 . . . . divide by the coefficient of (n+p)
The total cost for one notebook and one pen is $2.50.
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<em>Additional comment</em>
The first equation has 1 more notebook than 2 (n+p) combinations, telling us that a notebook costs $6.50 -2(2.50) = $1.50. Then the pen is $2.50 -1.50 = $1.00.
One could solve for the costs of a notebook (n) and a pen (p) individually, then add them together to answer the question. We judge that to be more work.
Answer:
The radius of the circle is √26.
Step-by-step explanation:
Since point A is on the circle, the distance between that point and the center of the circle is equal to the radius.
To find the distance between two points, the following equation should be used:
Replacing the numeric values:
The radius of the circle is √26.
Answer: yes it can be a measure of a triangle
I hoped i helped you and can i have brainliest if it's ok? ty
Sides: a = 6 b = 11 c = 13
Area: T = 32.863
Perimeter: p = 30
Semiperimeter: s = 15
Answer: 60 square units
Step-by-step explanation: i hope that helps buddy :)
Answer:
The total volume of the composite figure is 420 ft³.
Step-by-step explanation:
I'm not sure but I solved it as fast as I could
I apologize if it's incorrect :(
