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Studentka2010 [4]
3 years ago
15

Please help me with this lol

Mathematics
1 answer:
Valentin [98]3 years ago
8 0

Answer:

all the positive numbers because if -5-8=-13 we need another positve number to make it remain a negitive  and all the positve numbers are = or grater than -18

Step-by-step explanation:

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The cost C (in dollars) for the care and maintenance of a horse and carriage is C=15x+2000 where x is the number of rides.
MissTica

Answer: 100 rides are needed to break even.


Step-by-step explanation:

We have given the cost function

C(x)=15x+2000 where x is the number of rides.

And rides cost 35$

⇒ revenue function would be 35 times x

i.e.R(x)=35 x , where x is the number of rides.

Break even point of a firm occurs when at a certain point x the total cost equals to the total revenue.

i.e. at break even point

total revenue=total cost

⇒35x=15x+2000

⇒35-15x=2000[subtract 15x from both sides]

⇒20x=2000 [simplify]

⇒x=2000/20[dividing both sides with 20]

⇒x=100

∴ 100  rides are needed to break even.

6 0
3 years ago
You need 250 mL of a 90% alcohol solution. On hand, you have a 75% alcohol mixture. How much of the 75% alcohol mixture and pure
stich3 [128]

9514 1404 393

Answer:

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Step-by-step explanation:

Let x represent the quantity (in mL) of pure alcohol needed for the mix. Then the amount of 75% needed is (250-x). The amount of alcohol in the mixture is ...

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  0.25x = 37.5 . . . . . . . . subtract 187.5

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You need 100 mL of the 75% solution and 150 mL of pure alcohol to obtain the desired mixture.

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Answer:

A' (0,20)

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C' (-10,-40)

Answered by GAUTHMATH

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Answer:

Step-by-step explanation:

21

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3 years ago
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