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inna [77]
3 years ago
14

A certain virus infects one in every 300 people. A test used to detect the virus in a person is positive 70% of the time when th

e person has the virus and 15% of the time when the person does not have the virus.
Mathematics
1 answer:
solmaris [256]3 years ago
6 0

when is only 10 % i thing thats right

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A company provided the following data: Selling price per unit: 60 Variable cost per unit 20 Total fixed costs 400,000 HOw many u
EastWind [94]

Answer:

The company needs to sell 9000 units in order to turn a profit of $40,000

Step-by-step explanation:

Hello, great question. These types are questions are the beginning steps for learning more advanced Algebraic Equations.

From the question we can get some important hints before creating our formula. First the Selling Price will be profit so it will be a positive number, but both unit cost and fixed costs are losses so they will be negative values in our formula. Also our formula will depend on the amount sold which we can represent as the variable x. With these hints we can create our formula as the following

(60x-20x)-400,000 = y

Where:

  • x is the amount of units created and sold
  • y is the total profit after selling x-units

Now that we have our formula the question asks how many units need to be sold in order to earn a profit of $40,000. We can calculate this by replacing the $40,000 with y and solving for x like so,

(60x-20x)-400,000 = 40,000 .... add 400,000 on both sides

40x= 360,000 ... divide both sides by 40

x= 9000

The company needs to sell 9000 units in order to turn a profit of $40,000

I hope this answered your question. If you have any more questions feel free to ask away at Brainly.

5 0
3 years ago
Mark has a piece of wood 4 1/4 feet long. Tony has a piece of wood 1 2/4 feet long. How much wood do the boys have altogether. p
Alona [7]
They have 5 3/4 ft

4+1=5
1/4+2/4=3/4


but hey, its not the length of your wood that matters, its how you use it XD
8 0
4 years ago
Every 6th voter gets a button. Every 7th voter gets a sticker. Which voter is the first to receive both items?
MrMuchimi

Answer:

42

Step-by-step explanation:

Use LCM of 6 and 7 to find a number that is the same:

6     12     18     24     30     36     42

7     14     21     28     35     42

Since 42 shows up in both, the 42th voter gets a button and sticker.

Hope this helped.

8 0
3 years ago
heyyy! i haven't posted a question in a long time lolz. anyways, i really needed help with this!! if you can answer my question
Andre45 [30]
2 ones and 8 hundredths

00.00
the first zero is tens, ones, and after the decimal, to the right is the tenths, hundredths and so on
7 0
3 years ago
Which relationship describes angles 1 and 2?
galina1969 [7]
Angle 1 and 2 are vertical angles

Hope this helps :)
8 0
3 years ago
Read 2 more answers
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