ryan is seeling cookies to raise money for charity. he is selling chocolate chip cookies for $10 a package and sugar cookies for
$4 a package. he sold a total of 205 packages and raised a total of $1084. find the number of packages of each type of cookie he sold.
1 answer:
Answer:
The number of packages of chocolate chip cookies sold was 44 and the number of packages of sugar cookies sold 161
Step-by-step explanation:
Let
x ----> the number of packages of chocolate chip cookies sold
y ----> the number of packages of sugar cookies sold
we know that
-----> equation A
-----> equation B
Solve the system of equations by graphing
The solution is the intersection point both graphs
using a graphing tool
The solution is the point (44,161)
see the attached figure
therefore
The number of packages of chocolate chip cookies sold was 44 and the number of packages of sugar cookies sold 161
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The half-life of the given exponential function is of 346.57 years.
<h3>What is the half-life of an exponential function?</h3>It is the value of t when A(t) = 0.5A(0).
In this problem, the equation is:
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In which t is measured in years.
Hence the half-life is found as follows:
t = 346.57 years.
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