Learning outcome: Solve a linear system of equations in two and three variables using algebraic methods. Read and solve word pro
1 answer:
Answer: Equilibrium price would be $13.33 and equilibrium quantity would be 133.3 units.
Step-by-step explanation:
Since we have given that
Demand function is stated as
Supply function is stated as
We need to find the equilibrium price and quantity for this device.
For equilibrium, D(p) = S(p).
so, it becomes,
and when we put the value of p in any function:
Hence, Equilibrium price would be $13.33 and equilibrium quantity would be 133.3 units.
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Let the 2 integers be x and y.
Their product is 72, so we write: xy=72. (I)
One of them, say y, is 2 less than 5 times the other. We can write this as the equation:
y=5x-2. (II)
To find one of numbers, say x, we can substitute y with 5x-2, in the first equation:
xy=72,
expanding the left hand side expression we get:
.
Answer: C
Their product is 72, so we write: xy=72. (I)
One of them, say y, is 2 less than 5 times the other. We can write this as the equation:
y=5x-2. (II)
To find one of numbers, say x, we can substitute y with 5x-2, in the first equation:
xy=72,
expanding the left hand side expression we get:
Answer: C
Answer: 4.4 seconds
<u>Step-by-step explanation:</u>
h(t) = -16t² + 315
Since we want to find the total time the baseball is in the air, we need to find the time (t) when the ball lands on the ground --> h(t) = 0
0 = -16t² + 315
-315 = -16t²