Simplify 7.21x+1.12−4.53x
1 answer:
You might be interested in
Answer:
The cost of one donuts is $1.25 and the cost of one cinnamon is $1.75
Step-by-step explanation:
Let
x-----> the cost of one donuts
y ----> the cost of one cinnamon
we know that
-----> equation A
-----> equation B
Solve the system by graphing
Remember that the solution of the system of equations is the intersection point both graphs
using a graphing tool
The solution is the point (1.25,1.75)
see the attached figure
therefore
The cost of one donuts is $1.25 and the cost of one cinnamon is $1.75
