MATHEMATICS HIGH SCHOOL

Helppppppppp
pls pls im not sureeeeedee
helppppppppp pls pls im not sureeeeedee - 1

Answers

Answer 1
Answer: I believe it’s C (11/15)

Sorry if I’m wrong but you need to find the common denominator which is 15 so you would times 1/3 by 5 so you have 5/15 then times 2/5 by 3 so you’ll have 6/15. 5+6 = 11 you don’t add denominators obviously.

Related Questions

0.45013 in scientific notation
If you popped 3 bags of popcorn in 15 min how many bags did you pop per min
Point P was rotated by 120(the center of rotation is indicated)​
Solve for x. Round your answer to the nearest tenth if necessary.
Hello, myself Joyee. I am very much weak at Math and never get good at it. Though i have so many problems to ask. PLZ help me. Firstly, I need to know about this problem. If Marie has twice as much money as Tim, who has three times as much money as William, What is the ratio of the amount of money William has to the amount of money of Marie has ? A) 1:8, B) 1:6, C) 1:4, D) 1:2, E) 2:1

Convert 0.0049 as a decimal fraction

Answers

0.0049 as a fraction would be converted to 49 over 10000
to convert 0.0049, we count the number of digits after the decimal point.

we find it 4.

Thus, there will be 4 zeroes in the denominator.


We get   49/10000

Can anyone tell me how to graph 7x+y=5

Answers

You have the equation 7x+y=5
But you must rearrange this into y=mx+b form
to do this subtract 7x from both sides

y= -7x+5

On the y axis plot a dot on 5 because that is the y intercept. 

To find the x intercept let y=0
 0= -7x+5
1. Subtract 5 to both sides
-5=-7x
2. Divide by -7 to both sides
x= -5/-7
x=5/7 
The x intercept is 5/7, so on the x axis mark a dot on 5/7 which is approximately at 0.7
Once you have marked one dot on the y axis at 5 and another dot on the x-axis at 0.7 then you draw a straight line through these points and you have graphed the function 7x+y=5 
To graph an equation, you first need to solve it for y. This means turning the equation into this form: Y=.......

For your equation, once you solve it for Y, you get this:

y = -7x +5

Now, the coefficient of X is a very crucial part of graphing an equation. Once the equation is solved for Y, the coefficient of X is going to be the slope of the line you are graphing. The slope of a line is how much Y goes up every time X is increased by 1.

To graph an equation, you need to put in a number for X and find the matching value for Y and then graph that point. To do this, you will need a coordinate plane. I can't show you what that looks like on here. But, I will do my best to explain how it is done.

Now, for your equation:

y = -7x +5

Simply chose a number for X and find the matching value for Y. I'll try 0 for an example:

y = -7(0) +5

-7 * 0 is 0. Therefore, your new equation looks like this:

y =+5

Therefore, one "Solution pair" to this equation is (X=0,Y=5)

Simply repeat this process and plot the solution pairs on the coordinate plane and then connect the dots.

The cost of 3 kg of apples and 6 kg of oranges is Rs 300. If the cost of 1 kg of oranges is Rs 30, find the cost of 8 kg of apples.​

Answers

Answer:

Cost of 1 = 30

So cost of 8kg apples=8*30

=240

Step-by-step explanation:

Select the property of equality used to arrive at the conclusion. If 5x = 20, then x = 4. the division property of equality the addition property of equality the subtraction property of equality

Answers

Answer: The division property of equality

Step-by-step explanation:

The division property of equality says that if we divide both sides of an equation by the same number then both the sides are still remains equal.

The given statement : - If 5x = 20, then x = 4.

By using the division property of equality the division operation is applied on both the sides of the equation such that both sides are divide by 5 to arrive the given conclusion .

Hence, the property of equality used to arrive at the conclusion = The division property of equality

the division property of equality because you divide 20 by 5 to get the x value. 

put me as brainliest answer

A pharmaceutical company knows that approximately 5% of its birth-control pills have an ingredient that is below the minimum strength, thus rendering the pill ineffective. What is the probability that fewer than 10 in a sample of 200 pills will be ineffective

Answers

Answer:

The probability that fewer than 10 in a sample of 200 pills will be ineffective is 0.4364

∴ P(X<10)=0.4364

Step-by-step explanation:

Given that the total number of sample pills is 200

ie., n=200

To find  the probability that fewer than 10 in a sample of 200 pills will be ineffective:

Let us assume it success if a pill is ineffective.

The probability of success in each trial is p=5\%

p=5\%

p=(5)/(100)

=0.05

∴ p=0.05

We know that the total probability is p+q=1

The probability of failure is q

q=1-p

q=1-0.05

∴ q=0.95

Let X be the random variable of the number of ineffective pills in a sample of 200 pills.

Hence X has Binomial distribution with parameter n=200 and p=0.05

The formula for Mean in Binomial distribution is

\mu=np

Substitute the values in the above formula we get

\mu=200(0.05)

∴ \mu=10

The formula for Standard deviation in Binomial distribution is

\sigma=√(npq)

Substitute the values in the above formula we get

\sigma=√((200)(0.05)(0.95))

=√(9.5)

=3.082

∴ \sigma=3.082

Now we have to find the probability that fewer than 10 in a sample of 200 pills will be ineffective.

That is to find the area to the left of x=9.5

The formula is z=(x-\mu)/(\sigma)

Substitute the values in the formula we get

z=(9.5-10)/(3.082)

=(-0.5)/(3.082)

=-0.16

∴ z=-0.16

Now P(X<10)=P(Z<-0.16)

=0.4364

∴ P(X<10)=0.4364

Therefore the probability that fewer than 10 in a sample of 200 pills will be ineffective is 0.4364

Final answer:

The probability that fewer than 10 out of 200 birth-control pills will be ineffective is approximately 0.817, or 81.7%.

Explanation:

Probability is a mathematical concept used to quantify the likelihood of an event occurring. It ranges from 0 (impossible) to 1 (certain). It plays a crucial role in statistics and decision-making, helping to predict outcomes, assess risk, and make informed choices. To find the probability that fewer than 10 in a sample of 200 birth-control pills will be ineffective, we can use the binomial probability formula:

P(X < 10) = Σ (n choose k) * p^k * (1-p)^(n-k), where:

n = sample size = 200,

k = number of ineffective pills,

p = probability of a pill being ineffective = 0.05.

Calculating this probability using the formula, we get:

P(X < 10) ≈ 0.817, or 81.7%.

Learn more about Probability here:

brainly.com/question/32117953

#SPJ6

A drug trial had 256 participants. A survey was done to gather information about the participants experiences with side effects.

Answers

Answer:

There is really no solution because the question doesn't look full and cannot be answered without more details.
Other Questions
How many 570mL=___________oz
Mary is booking a 4-night stay at a hotel. The rate is $79 per room plus tax. If state tax is 6%, city tax is 2%, and municipal tax is 1%, what is her total lodging cost?
In right triangle ABC with the right angle at C, sin A= 2x + .1 and cos B = 4x - .7. Determine and state the vaule of x.
In the past 4 years, a sporting goods store had two yearly losses of $28,000 and $42,000 and two yearly profits of $104,000 and $10,000. What was the net profit or loss over 4 years? A. –$70,000 B. $114,000 C. $44,000 D. –$44,000