the value of y varies directly with x. when y = 7.5, x = 5. what is the value of y when x = 80?.

Answers

Answer 1

Answer:

Step-by-step explanation:

120 = y. the ratio is 3:2

80/2 is 40

40 times 3 is 120

120:80 = 3:2


Related Questions

please help i'll give brainist!

Answers

X is 30 degrees because the other triangle is an equilateral which every angle is 60 degrees. And the angle on A is 60 degrees. So the angle next to it to the left has to make up of 180 degrees. So that one would be 120 degrees. So the other two angles would have to be 30 each.


Answer: 30 degrees

Select all that apply.
Which of the following statements are true of this equation? Select all that apply.
5 1/6 divided by 2 5/12 = 2 4/29

Answers

Answer:

The answer to this question is 2.137931034

Step-by-step explanation:

Just divide it by a calculator.

In a certain city, Uber charges a $5 flat fee for picking you up, and then charges $0.75 per mile.
a.) Write a function that describes your cost for riding m miles.

Answers

Answer:

f(c) = 5 + 0.75m

Step-by-step explanation:

f(c) = 5 + 0.75(m)

where "c" is cost;

and "m" is distance in miles


Wendell would like to make some chocolate chips cookies. His recipe calls for the use of 1/2 cups of sugar per batch.he has 3 1/4 of sugar in his apartment. Accidentally, drops 1 cup of sugar on the floor. How many whole batches of sugar cookies can he make with the sugar he had leftover

Answers

Answer:

He can make 4 batches of sugar cookies.

Step-by-step explanation: 4x1/2=2 and because he lost 1 cup, he only has 2 cups left

i need somebody help on this test i am Taking

Answers

Answer:

ok and thank you for point

simplify this expression: 54 - c + 3c by the power of 2 - 10

Answers

Answer:

Step-by-step explanation:

Sorry dunno

Answer:

3c 2 −c+44

54-c+3c2-10

((54 - c) + 3c2) - 10.

Step 2 :Trying to factor by splitting the middle term.

2.1 Factoring 3c2-c+44.

The first term is, 3c2 its coefficient is 3 .

need answer asap
..................................

Answers

Yup it’s 66 that’s right hrhdndjdhehdhdbddhdbhdhd

Does anyone know this. whoever answers first and correct ill give brainliest

Answers

Answer:

5.49 x 10^14

Step-by-step explanation:

The calculator is showing the scientific notation but instead of EE, it changes to x 10 ^

Andrea bought tacos from a food truck and left 25% tip of $2.00. What was the price of Andreas tacos, before tip?

Answers

Answer:

If 2.00$ is 25% multiply by 4 which would give you the original price of 8$, plus tip that’s 10$. However the answer is, Andreas tacos, before tip, were 8$.

Answer:

$8

Step-by-step explanation:

25% is .25, also known as 1/4. So if you think of it that way, $2 is 1/4 of the entire payment that was added to it. 2*4 is 8, so the price of the tacos was $8 before any tip was added. Andrea paid $10 in total if you include the tip.

can you guys help with these questions??

Answers

Answer:

Step-by-step explanation:

<3 = 55° ( vertically opposite angles )

<4 = 180 - 105 = 75° ( linear pair )

<5 = 180 - ( 55 + 75 ) ( angle sum property of a triangle )

    = 180 - 130

    = 50°

<1 = <2 ( angles opposite to equal sides )

let < 1 and < 2 be x

55 + 2x = 180 ( angle sum property of a triangle )

2x = 180 - 55

2x = 125

x = 125 / 2

x = 62.5

therefore, < 1 = <2 = 62.5°

Hope this helps

plz mark as brainliest!!!!!!

Leslie is a biologist. She is going to randomly select one animal from her lab to study. There are 555 salamanders, 333 crayfish, and 121212 minnows in her lab. What is \text{P(salamander})P(salamander)start text, P, left parenthesis, s, a, l, a, m, a, n, d, e, r, end text, right parenthesis?

Answers

Answer:

1/4

Step-by-step explanation:

Given

amount of  salamanders, = 5

amount of crayfish = 3

amount of minnows = 12

Total fish = Total outcome = 5+3+12

Total outcome = 20

Since we are looking for the probability of selecting  salamanders, our expected outcome will be 5.

Probability = expected outcome/total outcome

Pr( salamanders,) = 5/20

Pr( salamanders) = 1/4

Hence the probability of selecting  salamanders, is 1/4


Which equation below would be best solved by using the addition property of equally?
1-23-45
231-45
f. 23-45
1-23 - 45

Answers

Answer:

D

Step-by-step explanation:

Edge 2020 :)

Answer:

the answer is D

Step-by-step explanation:

The graph shows a predicted population as a function of time.
Which statement is true?
As the number of years increases without bound, the
population decreases without bound.
As the number of years decreases, the population
increases without bound.
As the number of years increases without bound, the
population increases without bound.
There is no limit to the population, but there is a limit
to the number of months.

Answers

Answer: (As the number of years increases without bound, the population increases without bound.)

Hope I helped.

Answer:

The answer is C. As the number of years increases without bound, the population increases without bound.

Please help me with my work

Answers

Answer:

1) -1/4

2) -1/2

3) 1/3

Step-by-step explanation:

perpendicular lines' slopes are opposite reciprocals so you flip it and change the positive or negative sign

parallel lines have the same slope

A surveyor is surveying a street. The surveyor is standing at point Plooking down the street at a No Parking sign at point A and a stop sign at point R. Given PA=3x-4, PR=21 meters, AR=7 meters and point A is between point Rand point What is the value of x in meters?​

Answers

Answer:

Step-by-step explanation:

If point A is between P and R, then;

PA+AR = PR

Given

PA=3x-4,

PR=21 meters,

AR=7 meters

Substitute

3x-4 +7 = 21

3x+3 = 21

3x = 21-3

3x =18

x =18/3

x = 6

Hence the value of x is 6m

Evaluate the expression for x = 3.4, x = 7.6

Answers

u have to multiply both of the numbers

29°
2
115
What is the angle?

Answers

Answer:

Obtuse

Step-by-step explanation:

i need help for this question. can someone help me

Answers

Answer:

the missing angle is 130

Step-by-step explanation:

180-50=130

130 is the answer

the straight line must add up 180, so if one angle is 50, 180-50= 130

Simplify the expression using the distributive property.

–4(–3x + 11)



1. Distribute the –4 through the parentheses: -4(–3x) + (-4)(11)

2. Find each product: _____x -44

Answers

Answer:

Find each product: 12x × -44

I hope this helps!

Answer:

0) 12x-44

1) 12x-44

2) 12

Step-by-step explanation:

Hope it help, please give me brainlest! :)

7h + 3 = 7(2+h) -11
this is my question

Answers

Answer:

Step-by-step explanation:

7h+3=7(2+h)-11

7h+3=14+7h-11

7h+3=7h+3

The answer is 0 or no solution since they cancel each other out.

what is negative 7 minus negative 2

Answers

Answer:

-5

Step-by-step explanation:

-7 - (-2)

-7 + 2

Example: If you owe someone $7, and you give them $2, how much do you still owe? You are owing him $7 so it's a negative and you give him $2 which is a negative as well since you are giving it to him. So, to answer how much do you still owe, you would add $2  to the $7 you owed, so now, you owe him $5, which is a negative since you OWE him.

Hope this helps:)

what is the value of this expression below when y=2 and z = 8 : 8y-z

Answers

Answer:

= 8

Step-by-step explanation:

y is 2 then 8y is 8×2=16

z is,8

8y - z is 16-8

=8

74. Seven workers are hired to seed a field by hand. Each is given a plot 7 x 7
feet in size. What is the total area of the field?

Answers

Answer:

The total area of the field is 343 square feet

Step-by-step explanation:

Let us solve the question

∵ There are 7 workers hired to seed a field by hand

∵ Each is given a plot 7 x 7  feet in size

→ The plot has shaped a square because its two dimensions equal

The side of the plot = 7 feet

∵ The area of the square = side × side

∴ The area of each plot = 7 × 7

The area of each plot = 49 square feet

→ To find the total area multiply the area of 1 plot by the number

   of the workers

∵ The total area = 49 × 7

∴ The total area = 343 square feet

The total area of the field is 343 square feet

hii this is geometry please help!!

Answers

Answer:

40

Step-by-step explanation:

The Interior of a triangle adds up to 180. 180 - 90 - 50 = 40

Kaya rented a limousine for prom. There was a one-time charge of $100, plus an hourly rate of $45. Her total cost for the night was $325. Type an equation to find how many hours Kaya rented the limo.

Answers

Answer:

325-100 = 225

225/45 = hours

You're welcome give brainliest thanks

Mr. Myers wants to join a music club. The 1st choice music club charges a $5 sign-up fee and $1 each song.The superstar music club charges no sign-up fee and charges $3.50 each song. After how many song will the cost of the music clubs be equal?

1st choice music club equation: _____ Superstar Music Club Equation: _____
Solution: _____
THIS WAS DUE YESTERDAY, with a lot of other confusing problems! Please help!

Answers

Answer:

The answer is 2 songs and the solution is 7.

Step-by-step explanation:

1. Make an equation for each club. The 1st choice music club equation is 5+1x and the Music Club equation is 3.50x.

2. Go down the number line starting with 1 and replace x with that number and solve the equation until you get the same number on each side with the same replacement number.

3. So, 5+1x becomes 5+1(2) and that would equal 7. Then do 3.50x becomes 3.50(2) and that would also equals 7.

Note: When a number has a number next to it in parentheses then that means to have to multiply first. If you don't then you will get the wrong answer.

The perimeter P of a rectangle is calculated using the formula P = 2(l + w), where l and w are the length and width of the rectangle. Rearrange the formula to make length (l) the subject.

Answers

Answer:

P = 2(l + w)

P = 2l + 2w

4. Tres albañiles trabajaron en una construcción. Francisco trabajó el doble de horas que Eduardo y Eduardo trabajó el cuádruple de horas de las que trabajó Hugo. Entre los tres hermanos trabajaron 104 horas ¿Cuántas horas trabajó cada uno? Planteamiento algebraico: Procedimiento:

Answers

Answer:

La cantidad de horas que trabajó Hugo son 8, mientras que Eduardo trabajó 32 horas y Francisco 64 horas.

Step-by-step explanation:

En primer lugar, para determinar la ecuación que debes resolver, es conveniente establecer la variable a la que debes encontrar una solución en la ecuación. Entonces, llamas x a la cantidad de horas que trabajó Hugo.

Luego, sabes que Eduardo trabajó el cuádruple de horas de las que trabajó Hugo, esto es, cuatro veces más de las horas trabajadas por Hugo. Esto se expresa matemáticamente como 4*x.

Finalmente, Francisco trabajó el doble de horas que Eduardo, que se calcula multiplicando a las horas trabajadas por Eduardo por 2: 2*4*x= 8*x

Entre los tres hermanos trabajaron 104 horas. Esto indica que la suma de las horas trabajadas por Francisco, Eduardo y Hugo debe ser 104 horas. Esto se expresa matemáticamente como:

x + 4*x+ 8*x= 104 (Planteamiento algebraico)

Resolviendo (Procedimiento):

13*x=104

[tex]x=\frac{104}{13}[/tex]

x=8

Esto significa que la cantidad de horas que trabajó Hugo son 8.

Eduardo trabajó 4*x, esto es 4*8, que da como resultado 32 horas. Entonces Eduardo trabajó 32 horas.

Por último, Francisco trabajó 8*x. Siendo x=8, entonces 8*8=64. Entonces Francisco trabajó 64 horas.

Hugo trabajó 8 horas, Eduardo trabajó 32 horas y Francisco trabajó 64 horas.

Dado que tres albañiles trabajaron en una construcción, y Francisco trabajó el doble de horas que Eduardo y Eduardo trabajó el cuádruple de horas de las que trabajó Hugo, y entre los tres hermanos trabajaron 104 horas, para determinar cuántas horas trabajó cada uno se debe realizar el siguiente cálculo:

E + F + H = 104F = 2EE = 4HF = 8HH + 4H + 8H = 10413H = 104H = 104 / 13H = 8

Así, Hugo trabajó 8 horas, Eduardo trabajó 32 horas y Francisco trabajó 64 horas.

Aprende más en https://brainly.com/question/22195033

Use the substitution method to solve the system of equations. Choose th correct ordered pair. y = 8x - 4 x = 4 A. (2. 12) OB. (4, 28) C. (4, 4) D. (2.4)

Answers

9514 1404 393

Answer:

  B.  (4, 28)

Step-by-step explanation:

Substitute the value of x into the first equation. This gives you the value of y.

y = 8x -4x = 4

After substitution, we have ...

  y = 8(4) -4

  y = 28

Then the point is (x, y) = (4, 28).

What is the measurement of each base angle?

Answers

Step-by-step explanation:

isosceles triangle6 X+8 = 9 X_25 9 X _6X =25 +83×= 33X=11base angle = 74
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