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Alexus [3.1K]
3 years ago
11

Need help with 4-10 pleaseeee

Mathematics
1 answer:
emmainna [20.7K]3 years ago
5 0

Answer:

-6

Step-by-step explanation:

10 - 4 = 6

Turn it to negative.

-6

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Heather opened a lemonade stand on her street. It costs her $5.25 to buy the supplies each day, and she sells lemonade for $1.50
victus00 [196]

Answer:

around 66.66

Step-by-step explanation:

hope this helps

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3 years ago
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Sammy can run 3 1/2 feet in 2 seconds what is his unit rate ( feet per second)
zlopas [31]
1.75ft/second. 3.5/2 simplifies to 1.75/1.
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3 years ago
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A cylindrical piece of iron pipe is shown below. The wall of the pipe is 0.75 inch thick, and the pipe is open at both ends: The
const2013 [10]

Answer:

It's 398

Step-by-step explanation.

Diameter of 8.

height of 12.

8 - .75 - .75= 6.5

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round to the nearest whole number and you get

398

Take the diameter (8) an subtract is by both sides of the walls (0.75 each wall) that gives you 6.5. Take that 6.5 and half that, because you need to have the radius to solve volume problems, giving you 3.25.  Then multiply 3.25 by 3.25 together ( I know it seems redundant but it just works easier this way) This gives you 10.5625. After that take 10.5625 then multiply it into 12, being the height, which gives you 126.75. Finally take 126.75 and multiply that into 3.14 (pie) giving you the answer.

3 0
3 years ago
In order to determine the effectiveness of a new measles antibody test, it is administered to 500 people chosen at random. The n
myrzilka [38]

Answer:

The probability that a randomly chosen person has measles antibodies in his/her blood if the new test is positive = 0.9796

Step-by-step explanation:

The event that someone tests positive = P(T)

The event that someone has antibodies = P(A)

The event that someone does not have antibodies = P(A')

The new test was positive when administered to 96% of those who have the antibodies.

This probability = P(T n A) = 0.96

The new test gave positive results in 2% of those who do not have them.

This probability = P(T n A') = 0.02

The probability that a randomly chosen person has measles antibodies in his/her blood if the new test is positive = P(A|T)

This conditional probability is given as

P(A|T) = P(T n A) ÷ P(T)

P(T) is given as

P(T) = P(T n A) + P(T n A') = 0.96 + 0.02 = 0.98

P(A|T) = P(T n A) ÷ P(T) = 0.96 ÷ 0.98 = 0.9796

Hope this Helps!!!

5 0
3 years ago
WILL GIVE BRAINLIES HELP ASAP Select the correct answer from each drop-down menu.
Ainat [17]

Answer:

75

Step-by-step explanation:

<u>1. Set up a ratio proportion</u>

<u />\frac{30}{40} =\frac{x}{100}

<u>2. Cross Multiply</u>

3000=40x

<u>3. Divide both sides by 40 to isolate x</u>

<u />\frac{3000}{40} =\frac{40x}{40}

<u>4. Solve</u>

75=x

5 0
3 years ago
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