Kate has 21 coins (nickels and dimes) in her purse. How many nickels and dimes does she have if she has $1.50? 3 nickels and 18
2 answers:
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Answer:
The length is and the breadth is
Step-by-step explanation:
Let
x ----> the length of a rectangular campsite
y ----> the breadth of a rectangular campsite
we know that
The perimeter of a rectangle is equal to
so
------> equation A
The area of a rectangle is equal to
so
-----> equation B
substitute equation A in equation B
Solve the quadratic equation by graphing
The solution is ( I assume that the length is greater than the breadth)
see the attached figure
Find the value of y
therefore
The length is and the breadth is
Answer: the answer is y=
Step-by-step explanation: the y intercept is where the line hits the y axsis in this case it happens to be 5 REMEMBER the RISE OVER RUN
pick any 2 points in the graph (always Pick the point that intersect the graph to make your life easier)
the points I picked wreally (-2,0) and (0,5) the RISE is going to be +5 and the RUN is going to be 2
( you really have to count slowly and carefully and always check your work i like to use Desmos for these type of questions to check)