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iren2701 [21]
4 years ago
8

Two kinds of fish can be found in a small tank that is 5 feet long. A

Mathematics
1 answer:
Lina20 [59]4 years ago
5 0

Answer:

Step-by-step explanation:

It is longer by = 2 2/15 - 1 7/10

= 32/15 - 17/10

= (64 - 51)/30

= 13/30 foot

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18m^2 of cement

Step-by-step explanation:

since 4*6 is 24

You want to take 24 and subtract 1/4 of the rectangles area.

1/4 of 24 is 6

24 - 6 is 18

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3 years ago
Find the distance across the lake. Assume the triangles are similar.
pantera1 [17]

Answer:

B. 255 m

Step-by-step explanation:

<u>use similar triangle</u>

L / 60 = 85 / 20

L = (85 * 60) / 20

L = 255 m

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Hans is drawing triangle ABC on the front board. He wants to draw a triangle with one angle greater than 90°.
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A triangle with an angle >90 is an obtuse triangle the other two remaining angles would be acute <90 total degrees must = 180
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A group of friends receives a dinner bill for $87.50. The sales tax rate is 5%. They want to leave a 15% tip on the total bill a
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Read 2 more answers
Suppose that for a company manufacturing​ calculators, the​ cost, revenue, and profit equations are given by Start 1 By 3 Matrix
Nesterboy [21]

Answer:

  • Cost is Increasing at a rate of 20,000 per week
  • Revenue is decreasing at a rate of 100,000 per week
  • Profit is decreasing at a rate of 120,000 per week

Step-by-step explanation:

The cost, revenue, and profit equations for a company manufacturing​ calculators are given below:

  • Cost, C=90000+40x
  • Revenue, R=200x-\frac{x^2}{20}
  • Profit = R - C

\frac{dx}{dt} =500\\ When  Production output x=4000

<u />

<u>Change in Cost</u>

Cost, C=90000+40x

\frac{dC}{dt} =40\frac{dx}{dt}=40*500\\\frac{dC}{dt}=20,000

<u>Change in Revenue</u>

\frac{dR}{dt} =200\frac{dx}{dt}-\frac{x}{10}\frac{dx}{dt}\\=200*500-\frac{4000}{10}*500\\\frac{dR}{dt} =-100,000

<u>Change in Profit</u>

\frac{dP}{dt} =\frac{dR}{dt}-\frac{dC}{dt}\\=-100,000-20,000\\\frac{dP}{dt}=-120,000

Therefore, when production output is 4000 and increasing at a rate of 500 calculators per week,

  • Cost is Increasing at a rate of 20,000 per week
  • Revenue is decreasing at a rate of 100,000 per week
  • Profit is decreasing at a rate of 120,000 per week
5 0
3 years ago
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