Write 557.90 in expanded form.
1 answer:
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Answer:
Increasing by $66 per day
Step-by-step explanation:
If sales are dropping at a rate of 2 per day, the sales function is:
If price is increasing by $1 per day, the daily price function is:
Revenue is given by daily sales multiplied by daily price:
The derivate of the revenue function gives us the daily rate of change in revenue:
Currently (t=0) her daily revenue is changing by:
Her revenue is increasing by $66 per day.
The cost of one pizza is $8.5
Step-by-step explanation:
Let,
Cost of one pizza = x
Cost of one bread stick = y
According to given statement;
3x+2y=29.50 Eqn 1
2x+3y=23 Eqn 2
Multiplying Eqn 1 by 2
Multiplying Eqn 2 by 3
Subtracting Eqn 3 from Eqn 4
Dividing both sides by 5
Putting y=2 in Eqn 1
Dividing both sides by 3
The cost of one pizza is $8.5
Keywords: linear equation, elimination method
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You just average the x and y. So for x it is (3+-5)/2 = -1 and for y it is (8+-1)/2=3.5.
The midpoint is (-1,3.5). See picture for a graphical explanation.
The midpoint is (-1,3.5). See picture for a graphical explanation.