4. The value of y is directly proportional to the value of x. If y = 45 when x = 180, what is the value of y when x = 80?​

Answers

Answer 1

Answer:

y=8⇒8=24x

x=24/8=3

Step-by-step explanation:

Answer 2

The value of y when x = 80 is 20.

It is required to find the value of y.

What is arithmetic?

Arithmetic is the branch of mathematics that deals with the study of numbers using various operations on them. Basic operations of math are addition, subtraction, multiplication and division. These operations are denoted by the given symbols.

Solution:

"Y is directly proportional to X" can be rewritten as a mathematical expression of the form Y = KX

"K" is the constant of proportionality and must be determined from the initial information.

According to given question we have,

If Y = 45 when X=180

It means

45 = 180K

K = 45/180

K = 0.25

Now that we know the value of K, we can use it to calculate the value of Y when X=80

Y = (0.25)(80)

Y=20

Therefore, the value of y when x = 80 is 20.

Learn more about arithmetic here:

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Im not a teacher I want questions to be to answer

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Answer:

Huh now?

Step-by-step explanation:

I am sorry but I do not understand

What is the simplified form of square root of 45?

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Answer:

I'm pretty sure the answer is C

It’s c 100% that how you would simplify in a calculator

Please pass this on... ( #helpsavelives )
Whoever is reading this:
I love u.
U matter.
The world needs u
hang in there ik it may be bad but u deserve the world <3
ur beautiful no matter ur shape, size, color, gender.. anything
don't give up I need u to live.
I wish I could take everyone's problems so yall wouldn't have to have em but I can't so just know ily and if anyone needs to talk u can talk to me

Please, pass this on. Everyone deserves to know this.❤❤
just copy and paste its not hard pls this could save someone's life

Answers

Answer:

Ive seen lots of these and just saw this one too but this actually really does help so thankyou for passing it on ily too<3

Step-by-step explanation:

find a counterexample for the conjecture: If n is a real number, then -n is a negative

Answers

Answer:

Step-by-step explanation:

-5 is a real number, right ?

- (-5) = 5 is not negative

thanks

Answer plzzz I don’t understand

Answers

Answer:

Step-by-step explanation:

in a triangle, the sum of all angles is 180 (angle sum theorem). so use the equation 180=50+80+10x. then solve

1. combine like terms

it becomes 180=130+10x

2. subtract 130 from both sides

it becomes 50=10x

3. divide both sides by 10

it becomes 5=x

so, x=5

hope this helped :)


How many 3/4
cups of juice can be poured from 6 cups of juice?

Answers

Answer:8

Step-by-step explanation: 4x6=28

28 divided by 4 = 8

How could you describe the maximum the LCM between two numbers could be?

Answers

Answer:

  the product of the two numbers

Step-by-step explanation:

The LCM of two numbers is their product, divided by their GCF. If their GCF is 1, then the LCM will be their product. That is the most it can be.

__

We assume you're concerned with whole numbers. For rational numbers, the GCF may be a fraction, so the LCM may be larger than the product of the numbers.

  LCM(5, 6) = 5·6/GCF(5, 6) = 5·6/1 = 30

  LCM(1/2, 3/4) = (1/2)(3/4)/GCF(1/2, 3/4) = (3/8)/(1/4) = 3/2

WHAT 10 x 10 ÷ 5 x 1000 ?
PLS SOMEONE HELP ME!!!!!!!!!!!

Answers

Answer:

20000

Step-by-step explanation:

10 * 10       =     100

100 / 5      =     20

20 * 1000 =     2000

The answer will be 20000

Six of 8 stores have power drinks on sale saturday. In simplest form, what fraction of the stores has power drinks on sale saturday?

Answers

3/4 of the stores have power drinks on sale on Saturday

PLS HELP :(

Solve the inequality and graph the solution on the line provided.

Answers

Answer:

[tex]x\leq -1[/tex]

Step-by-step explanation:

1. [tex]7x\leq 7-14[/tex]

2.[tex]7x\leq -7[/tex]

3. divide both sides by 7

4. [tex]x\leq -1[/tex]

Closed circle on -1 and the line goes to the left

Of the three elevation, -2 feet, -12 feet, and 30 feet, which represents the least number? Which represents the farthest from sea level?

Answers

Answer:

-12 feet represents the least feet and the farthest from sea level.

Step-by-step explanation:

a seed company has a test plot in which it is testing the germination of a hybrid seed, They plant 50 rows of 40 seeds per row. After a two week period, the researchers count how many seed per row have sprouted. They noted that least number of seeds to germinate was 33 and some rows had all 40 germinate. The germination data is given below in the table. The random variable x represents the number of seed in a row th

Answers

Answer:

Mean =[tex]\sum x P(x) = 36.86[/tex]

Standard deviation =[tex]\sum x^2P(X)=1360.9[/tex]

Step-by-step explanation:

x          P(x) [tex]x \times P(x)[/tex]       [tex]x^2 \times P(x)[/tex]

33         0.02     0.66          21.78

34          0.06     2.04         69.36

35           0.1      3.5        122.5

36           0.2      7.2         259.2

37           0.24     8.88        328.56

38           0.26     9.88        375.44

39            0.1     3.9         152.1

40            0.02     0.8         32

             1        36.86      1360.9

We are supposed to find mean and standard deviation

Mean =[tex]\sum x P(x) = 36.86[/tex]

Standard deviation =[tex]\sum x^2P(X)=1360.9[/tex]

4+ (-3) - 2*(-6)
What is the answer to

Answers

Answer:

13

Step-by-step explanation:

4+(-3)-2*(-6)

4-3-2*-6

1-(-12)

1+12

13

Answer: 13

Step-by-step explanation:

I Had The Same Problem So Try And Its Gonna Be Right.

Simplify the following:
a
2
b

b
2
a
2
c

=
a
2
b • b
2
a
2
c =

Answers

Answer:

It is A

Step-by-step explanation:

Put these numbers in order from least to greatest.

Answers

Answer:

[tex]\sqrt{1}[/tex], 1.23, 5/4, [tex]\sqrt{3}[/tex], 1.9, 11/3

Step-by-step explanation:

5/4 = 1.25

11/3 = 3.67

[tex]\sqrt{3} =1.73[/tex]

[tex]\sqrt{1} =1[/tex]

1.23

1.9

Numbers from least to greatest:

[tex]\sqrt{1}[/tex], 1.23, 5/4, [tex]\sqrt{3}[/tex], 1.9, 11/3

EXTRA POINTS AND BRAINLIEST

Answers

Answer:

8+y

Step-by-step explanation:

Sum means that you are adding the constant 8 and the variable y.

Hope this helps!!

Answer:

8 + y

Step-by-step explanation:

"sum" means you are performing addition or adding two quantities/values together

Therefore, the "sum" of "8 and y" is just adding 8 and y together

You just put a plus sign between 8 and y to add them together, so you get 8 + y.

Hope this helps!

:)  

Write an equation in slope-intercept form for the line that passes through (0, 1) and is perpendicular to the line whose equation is y = 2x? Ay= -2x + 1 B y = 2x + 1 C y = x + 1 Dy=-%2x + 1​

Answers

Answer:

y= -1/2 x + 1

Step-by-step explanation:

The line passes through point (0, 1) and is perpendicular to line with equation :

y=2x

Perpendicular lines are those that give -1 when the product of their slopes is calculated.

This means m₁ *m₂= -1

In this case, m₁=2, finding m₂ as;

m₁ * m₂ = -1

2  * m₂ = -1

      m₂ = -1/2

Using point  (0, 1),m₂ = -1/2, and imaginary line (x, y) then the equation of the line in slope-intercept form y= mx + b will be;

-1/2 = y-1/x-0

-1/2 x = y-1

1-1/2x = y

The equation will be ;

y= -1/2 x + 1

Simplify this expression 1/2k^2+g-3+1/2k^2-3+2g

Answers

Step-by-step explanation:

the answer is 4 there are these steps you need to do this but I am not going to sit hee for an hour and tell you how to solve this answer so that is the answer

Answer:

THE CORRECT ANSWER IS A.

Step-by-step explanation:

Paul is training for a bike race and is attempting to improve his average speed. With his old trainer, Paul averaged a pace of 20 MPH. With his new trainer, he rode at an average speed of 27 MPH. By what percent did his average speed increase?

Answers

Answer:

5.4%

Hope This Helps!

Please help me with this problem

Answers

Answer:

Since the taxis are heading directly towards each other, we will assume the path between them to be a straight line

We have 2 taxis coming towards each other, which means that we have 2 observers in this system

so from now on, we will see this situation from the eyes of the driver coming at the speed of 40mph

Now imagine yourself in a car. if you are in a moving car, a tree outside will look like it is moving in the opposite direction and it will be doing so at the same speed as the speed of your car and we will always feel like we are at rest

so, we can say that when we are in a car, the objects coming towards us will have our car's velocity added to their velocity, as in the above case, the speed of the tree is 0mph and your speed is v mph, which causes the tree to move back at a velocity of v mph

Now, back to the question. we are in a car moving at a speed of 40 mph and there is a car coming towards us is moving at a speed of 27 mph

If we look at the situation from the eyes of the driver of the car moving at a velocity 40 mph,

he is at rest and the other car is moving at a velocity of (40 + 27) = 67 mph

So, from the frame of reference of the 40mph driver, the other car is moving at 67 mph and the time taken by a car moving at 67 mph to cover 7 miles is the time in which the taxis will meet

Hence, time taken by a 67 mph car to cover 7 miles

time = distance / speed

time = 7 / 67

time = 0.1 hour (approx) or 6 minutes

Therefore, the taxis will meet after 6 minutes

The tax on a new pair of headphones is $3.70 and the total cost after tax is $49.95 . What is the pre-tax price of the headphones

Answers

Answer:

the price is 46.25 dollars

Step-by-step explanation:

According to researchers at Dan Jones & Associates, 1 in every 3 women has been a victim of domestic abuse (Domestic Violence: Incidence and Prevalence Study, Sept.–Dec., 2005). However, many experts on domestic violence believe that the proportion of women who are domestically abused is closer to p = .10. Compare the probability of observing 4 or more abused women in a sample of 15 if p = 1/3 and the probability of observing 4 or more abused women in a sample of 15 if p = .10. The results will lead us to believe that p=1/3 or p=.1? Group of answer choices p=1/3 p=.1

Answers

Answer:

A) 79.08%

B) 5.55%

C)p = 1/3 is more appropriate than p = 0.1

Step-by-step explanation:

This is a binomial probability distribution problem, so we will use the formula;

P(k) = (n!/(k!(n - k)!) × p^(k) × (1 - p)^(n-k)

We want to Compare the probability of observing 4 or more abused women in a sample of 15 if p = 1/3 = 0.3333 and the probability of observing 4 or more abused women in a sample of 15 if p = 0.10

Thus;

P(X ≥ 4) = P(4) + P(5) + P(6) + P(7) + P(8) + P(9) + P(10) + (P(11) + P(12) + P(13) + P(14) + P(15)

A) Thus at p = 0.3333;

P(4) = (15!/(4!(15 - 4)!) × 0.3333^(4) × (1 - 0.3333)^(15-4) = 0.1949

P(5) = (15!/(5!(15 - 5)!) × 0.3333^(5) × (1 - 0.3333)^(15-5) = 0.2143

Using online binomial probability calculator we can get the remaining values which are;

P(6) = 0.1786

P(7) = 0.1148

P(8) = 0.0574

P(9) = 0.0223

P(10) = 0.0067

P(11) = 0.0015

P(12) = 0.0003

P(13) = 0.0000

P(14) = 0.0000

P(15) = 0.0000

Thus;

P(X ≥ 4) = 0.1949 + 0.2143 + 0.1786 + 0.1148 + 0.0574 + 0.0223 + 0.0067 + 0.0015 + 0.0003 + 0 + 0 + 0 = 0.7908 = 79.08%

B) Now,for p = 0.1 and Using online binomial probability calculator, we have;

P(4) = 0.0428

P(5) = 0.0105

P(6) = 0.0019

P(7) = 0.0003

P(8) = 0.0000

P(9) = 0.0000

P(10) = 0.0000

P(11) = 0.0000

P(12) = 0.0000

P(13) = 0.0000

P(14) = 0.0000

P(15) = 0.0000

P(X ≥ 4) = 0.0428 + 0.0105 + 0.0019 + 0.0003 + 0.0000 + 0.0000 + 0.0000 + 0.0000 + 0.0000 + 0.0000 + 0.0000 + 0.0000 = 0.0555 = 5.55%

C) Comparing both Probabilities, 79.08% is far higher than 5.55%. Thus we can say that p = 1/3 is more appropriate than p = 0.1

20 points
plz answer soon!

A square on a coordinate plane is translated 9 units down and 1 unit to the right. Which function rule describes
the translation?
O T 1,-9 (x,y)
O T -1,-9 (x,y)
O T -9, 1 (x, y)
O T -9, -1 (x, y)

Answers

Answer: it should be the first one!! :)

Step-by-step explanation:

Answer:its the first one

Step-by-step explanation:did the test


Given f(x) = -5x - 2, what is the value of f(-3/5)?

Answers

Answer:

1

Step-by-step explanation:

f(-3/5)=-5(-3/5)-2

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What is the value of g? 18g+7=g

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Answer:

The model below represents an equation. Which value of x makes the value true?

x=

Step-by-step explanation:The model below represents an equation. Which value of x makes the value true?

x=

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Answers

Answer:

4

Step-by-step explanation:

Sean is comparing dog food prices.At pet foods store,the total weight of a bag of dog food varies directly with the number of bags.Each bag costs $46.04.another store Healthy Pets sells dog food in 50 lb bags. Each bag costs $88.45. How much would Sean save by buying a 150 lb of dog food from Pet Foods instead of Healthy pets?

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Answer:

Step-by-step explained :

Iveta takes out a mortgage of $100,000 to purchase a property. The interest rate is calculated as a simple interest rate of 5% per year. How much interest would Iveta have to pay after six years?

Answers

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Grady is excavating the foundation of a house. If the hole will be
40 feet long, 24 feet wide, and 4 feet deep, how many cubic feet
of dirt must be removed from the site?

Answers

Answer:

3,840 cubic feet

Step-by-step explanation:

V=LWH

V= 40X24X4

V=3,840 cubic feet

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