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Vera_Pavlovna [14]
3 years ago
7

The surface of the earth is 70% water. If the diameter of the earth is 8,000 miles, how many square miles of the earth are cover

ed by land.The surface of the earth is 70% water. If the diameter of the earth is 8,000 miles, how many square miles of the earth are covered by land.
Mathematics
1 answer:
Pavlova-9 [17]3 years ago
7 0

Either 5,600 or 11,428.57142857143

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Answer:

q(p)= -3000p+12000

Step-by-step explanation:

For the function to be linear,

q(p)= mp + c

where

q(p): number of hamburgers sold

p: price per hamburger

m: gradient of the function

c: constant of the function

q(p)=6000 when p=2

6000=2m+c .................... equation I

0=4m+c

c=-4m........................ equation II

Substitute value of c in equation I

6000=2m-4m

m= -3000

c=12000

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6 0
3 years ago
What are the domain and range of the function Rx) = 4(x2 +6x2+5x-4)?
Snezhnost [94]

R(x) is a polynomial. Thus, the domain is the same as the range.

Domain = range = ALL REAL NUMBERS.

We can also express the answer as

(-infinity, infinity).

4 0
3 years ago
the smith family is driving to a vacation spot the number of miles they have left is 540-60x where x represents the number of dr
grin007 [14]

Answer:

The number of miles traveled for x hours

Step-by-step explanation:

4 0
3 years ago
Simplify these rates: a) 480km in 6 hrs ____________________________________ b) $56 for 7hrs ___________________________________
klio [65]

Answer:

a. 80km/hr

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Step-by-step explanation:

You want to divide these down to the smallest rate possible, so you divide.

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56/7=8

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3 0
4 years ago
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saul85 [17]
Break-even is the point where the profit and expenses are balanced. At this point, the sum of the fixed cost and the variable cost should be equal with the total sales. Therefore,

FC + VC = S

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where x is the number of tickets.

5000 + 3x = 5x
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4 0
3 years ago
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