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2 years ago

Which of these is not an equation?

Mathematics

1 answer:

professor190 [17]2 years ago

5 0

Answer:

Step-by-step explanation:

There must be both left and right side.

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A concession stand at a sports stadium sells 600 bags of peanuts (each game) if the price of each bag is $4.00. For each $0.25 i

grin007 [14]

Answer:

Price = $4.50

Maximum revenue = $2,430

Step-by-step explanation:

The concession stand sells 600 bags of peanut at $4.00 (600, $4.00).

If there is a $1 increase in price, the number of bags old will decrease by 120, which mens that 480 bags of peanuts will be sold at $5.00 (480, $5.00).

Tracing a linear relationship between price and quantity sold with the two given points:

$m = \frac{5-4}{480-600}\\ m=-\frac{1}{120}$

$P - P_0=m*(Q-Q_0)\\P-4.00=-\frac{1}{120} (Q-600)\\P= -\frac{1}{120}Q +9$

The revenue function is given by the price multiplied by the quantity sold:

$R=Q*P= (-\frac{1}{120}Q +9)*Q\\R=-\frac{1}{120}Q^2 +9Q$

The value of 'Q' for which the derivate of the revenue function is zero, is the output level for which revenue is maximum:

$R'=0=-\frac{2}{120}Q+9\\Q_{max} = 540\\P_{max} = -\frac{540}{120} +9\\P_{max} =\$4.50$

The total revenue of 540 units at $4.50 per unit is:

$R = \$4.50*540\\R=\$2,430$

6 0

3 years ago

Dale invested his savings in two investment funds. The $4000 that he invested in Fund A returned a 5% profit. The amount that he

vladimir1956 [14]

Answer:

Dale invested in fund B $8,000

Step-by-step explanation:

We can arrange the given information into the nex equation:

4000*5% + x*2% = (4000+x)*3%

4000*0.05 + 0.02x = 4000*0.03 + 0.03x

200 + 0.02x = 120 + 0.03x

200 - 120 = 0.03x - 0.02x

80 = 0.01x

x = 80/0.01

x = 8,000 He invested in fund B.

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3 years ago

(−11, 6), (−7, 2) slope

Liula [17]

Answer:

-1

Step-by-step explanation:

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blondinia [14]

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4 years ago

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Which is the intersection of DF and EG?

jenyasd209 [6]

Answer:

line EF all of the lines pass over those 2 points

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