what is the value of the function y = 3/4x - 5 for x = -4

Answer:

[tex]5)y = \frac{7}{8}x + 1 \\ 6)y = - 10x \\ 7)y = 2.5x - 7 \\ 8)y = 1.2x \\ 9)y = - 5x - 8[/tex]

Answer:

2.25 and 4.95

Step-by-step explanation:

x + y = 7.2

x - y = 2.7

x = 7.2 - y

x - y = 2.7

(7.2 - y) - y = 2.7

7.2 - 2y = 2.7

-2y = 2.7 - 7.2

-2y = -4.5

-2y/-2 = -4.5/-2

y = 2.25

x + y = 7.2

x + 2.25 = 7.2

x = 7.2 - 2.25

x = 4.95

Check: 4.95 and 2.25

x + y = 7.2

(4.95) + (2.25) = 7.2

7.2 = 7.2

x - y = 2.7

(4.95) - (2.25) = 2.7

2.7 = 2.7

Answer:

x+y=7.2

x-y=2.7

Step-by-step explanation:

equation

x+2.7+x=7

2x=4.3

x=4.3/2

y=7-4.3/2

Answer: See explanation

Step-by-step explanation:

Total water fetched = 24 pints.

Jill drank a tenth of this. This will be:

= 1/10 × 24

= 2.4 pints

Jack drank a quarter. This will be:

= 1/4 × 24 = 6.

They gave three eighths to dame Dob . Thus will be:

= 3/8 × 24

= 9

They gave a fifth to jill's mother. This will be:

= 1/5 × 24.

= 4.80

Amount that'll be left over will be:

= 24 - (2.40 + 6 + 9 + 4.80)

= 24 - 22.2

= 1.8

1.8 pints of water will be left over.

Answer:

We conclude that the price per pound of the grapes = $1.45

Hence, option A is true.

Step-by-step explanation:

Given the table

Pounds of Grapes         Total Cost

1.2                                    $1.74

2.6                                   $3.77

4.4                                    $6.38

Total pounds of Grapes = 1.2+2.6+4.4

                                               = 8.2 pounds

Aggregate cost = 1.74 + 3.77 + 6.38

                                  = $11.89

Thus,

Prince per pound = Aggregate cost / Total pounds of Grapes

                              = 11.89  / 8.2

                              = $1.45

Therefore, we conclude that the price per pound of the grapes = $1.45

Hence, option A is true.

Answer:

24$

Step-by-step explanation:

Answer:

24

Step-by-step explanation:

Answer:

The building is 187.5 feet tall.

Step-by-step explanation:

A nearby person is 6 feet tall, and casts a shadow that is 8 feet long.

This means that the relation between the real height and the shadow is given by:

[tex]\frac{6}{8} = \frac{3}{4}[/tex]

A tall building casts a shadow that is 250 feet long. How tall is the building?*

The real height is three fourths of the shadow. So

[tex]\frac{3}{4}*250 = 187.5[/tex]

The building is 187.5 feet tall.

Answer:

one solution, no solution, infinitely many solutions

Step-by-step explanation:

I rearranged the first equation into x=6-2y

plug that into the second equation

2(6-2y)-3y=26

12-4y-3y=26

12-7y=26

-7y=14

y=-2

Then you plug that into one of the equations

x+2(-2)=6

x-4=6

x=10

The solution to the first system is (10,-2)

the second system already has one equation as something equal to a single variable so you just plug that into the other one

4x-2(2x-4)=-6

4x -4x +8 =-6

8=-6

this is a false statement so the system of equation has no solution

Lastly I rearranged the first equation into y=2x-4 and then plug that in

6x-3(2x-4)=12

6x-6x+12=12

12=12

this statement is true so the system of equations has infinite solutions

Answer:

6x − 20y

Step-by-step explanation:

−2[−3(x − 2y) + 4y] =

= −2[−3x + 6y + 4y]

= −2[−3x + 10y]

= 6x − 20y

Answer:

Step-by-step explanation:

Here you go mate

PEDMAS:

Parenthesis

Exponent

Multiplication

Addition

Subtraction

Step 1

−2[−3(x − 2y) + 4y]  Equation

Step 2

-2[-3(x -2y) + 4y]  simplify

(-2)(-3(x-2y))+(-2)(4y)

Step 3

(-2)(-3(x-2y))+(-2)(4y)   Add,Subtract And Remove parenthesis

6x-12y-8y

answer

6x-20y

Answer:

Total amount Silas and Raja has at first = $252

Step-by-step explanation:

Let,

Amount Silas had = x

Amount Raja had = y

According to given statement;

x = 3y       Eqn 1

x-84 = y+42     Eqn 2

Putting value of x from Eqn 1 in Eqn 2

3y - 84 = y+42

3y-y = 42+84

2y = 126

Dividing both sides by 2

[tex]\frac{2y}{2}=\frac{126}{2}\\y=63[/tex]

Putting y = 63 in Eqn 1

x = 63(3)

x = 189

Total amount they had = 189 + 63 = $252

Hence,

Total amount Silas and Raja has at first = $252

The amount they have altogether at first is $252

Let

Raja money = x

Silas had 3 times as much money as Raja. Therefore, Silas money is as follows:

Silas spent $84 of his money to buy a birthday gift for his grandma. Therefore, he has the following amount:

Raja was awarded $42 for winning a competition. Therefore, Raja amount is as follows;

In the end, they had the same amount of money. Therefore,

3x - 84 = x + 42

3x - x = 42 + 84

2x = 126

x = 126 / 2

x = 63

learn more on equation here: https://brainly.com/question/228711?referrer=searchResults

Answer:

Step-by-step explanation:

u+6 = - 5               Subtract 6

u + 6 - 6 = - 5 - 6

u = - 11

Try thinking this as money. If you are 5 dollars in the hole and you borrow another 6 dollars, where are you?

The answer is that unless you pay your debt of 5 dollars, you are - 11 dollars in the hole.

Answer: i could be worng but i will try to answer it nicely and i don´t known how to explaine so i will only tell answer ok? if yes thx.If no than i am sorry

Step-by-step explanation: 162 .will be the answer if it is worng i am so         sorry     :(

Answer:

2

Step-by-step explanation:

5-3=2

Answer:

38 is the correct answer plz tell me if im wrong

Step-by-step explanation:

9514 1404 393

Answer:

  9.22

Step-by-step explanation:

The distance formula is ...

  d = √((x2 -x1)^2 +(y2 -y1)^2)

Using the given coordinates, the distance between them is ...

  d = √((8-(-1))^2 +(0 -(-2))^2) = √(9^2 +2^2) = √85 ≈ 9.22

The length of AB is about 9.22 units.

Answer:

i believe a is -2.9

Step-by-step explanation:

do u want me to figure out the rest or did u just need me to do that one?

Answer:

No, it actually has infinite solutions.

Step-by-step explanation:

2x+4y=22 is your 1st equation

-x-2y=-11 is your 2nd equation.

Let's say you want to cancel out the x variable. Multiply the 2nd equation by 2.

Then your equations would be:

2x+4y=22

-2x-4y=-22

If you add both you will get 0=0

Since both sides are equal to each other, there are infinite solutions.

Answer:

80˚

Step-by-step explanation:

Since the angles are equal, we can make this equation:

2x + 65 = 8x + 5

60 = 6x

x = 10

so if we put x = 10 in 8x + 5 we get

8x + 5

8(10) + 5

80 + 5

85

Answer:

No, P(almond) ≠ P(almonds|California).

Step-by-step explanation:

In this question, we have that:

38% of adults say that almond is their favorite nut.

Of those adults surveyed, 19% live in California, and of those, 40% chose the almond as their favorite nut.

Since the probabilities are not equal(probability of liking almonds and probability of liking almonds, given that the person lives in California), we have that liking almonds is not independent of residency, and the correct option is:

No, P(almond) ≠ P(almonds|California).

No, P(almond) ≠ P(almonds| Is liking almonds independent of residency.

Given that,

According to a recent survey of adults, 38% say the almond is their favorite nut.

The adults were also asked where they lived.

Of the 19% of those who responded that they live in California, 40% chose the almond as their favorite nut.

We have to determine,

Is liking almonds independent of residency.

According to the question,

38% say the almond is their favorite nut.

The adults were also asked where they lived.

Of the 19% of those who responded that they live in California, 40% chose the almond as their favorite nut.

An independent event and probability, the outcomes in an experiment are termed as events. Ideally, there are multiple events like mutually exclusive events, independent events, dependent events, and more.

Since the probabilities are not equal(probability of liking almonds and probability of liking almonds, given that the person lives in California), we have that liking almond is not independent of residency.

Hence, No, P(almond) ≠ P(almonds| Is liking almonds independent of residency.

To know more about Probability click the link given below.

https://brainly.com/question/23044118

Answer:

so m=2 so y=2x+-3

Step-by-step explanation:

The linear function rule is y = x + 16

A linear equation is an algebraic equation of the form y = mx + b, where m is the slope and b is the y-intercept, and only a constant and a first-order (linear) term are included. Sometimes, the aforementioned is referred to as a "linear equation of two variables," with y and x serving as the variables.

Given, A line passes through the points (4,20) and (8,24)

From the slope-intercept form of a line:

Y = mx + c

Where,

m = slope = (y₂ - y₁)/ (x₂ - x₁)

c = constant

In our case,

m = (24 -20)/ 8-4

m = 4/4

m = 1

So the equation of a line

y = x + c

Since, this line passes through the point(4, 20)

20 = 4 + c

c = 16

Therefore, the equation of the line passes through the points (4,20) and (8,24) is y = x + 16

Learn more about Linear equations here:

https://brainly.com/question/11897796

#SPJ2

Answer:

6

Step-by-step explanation:

[tex]1\frac{1}{2}[/tex]÷[tex]\frac{1}{4}[/tex]=

[tex]\frac{3}{2} *\frac{4}{1}[/tex]=

6

Hope this helps!

Pls give brainliest

Answer:

3 or 6

Step-by-step explanation:

im pretty sure its 3 or 6

Answer:

$194.05 per hour

Step-by-step explanation:

Divide her total earnings by 28:

5433.35/28

= approximately 194.05

So, Sandra earns about $194.05 per hour

Answer:

mentally "cut" the two different figures where they connect and find the area separately and then add them together:

4*15 = 60

11*10= 110

110+60= 170 sq mm

Step-by-step explanation:

i hope this helped :)

circumference =2×pi×r

18/2=9(r)

so...2×pi×9

=54..5

Answer:

56.5 ft

Step-by-step explanation:

We define the number π as the ratio between the circumference and diameter of a circle: π = c/d. Rearranging this equation gives us one for the circumference: c = πd. Using an approximation of π ≈ 3.14 and our value of d = 18 feet, we can find that c = 3.14(18) = 56.52 ft, or 56.5 ft, rounded to the nearest tenth.

Answer:

Step-by-step explanation:

[tex]2n + 3 = -3. 2\\\\\mathrm{Subtract\:}3\mathrm{\:from\:both\:sides}\\\\2n+3-3=-3.2-3\\\\Simplify\\\\2n=-6.2\\\\\mathrm{Divide\:both\:sides\:by\:}2\\\\\frac{2n}{2}=\frac{-6.2}{2}\\\\Simplify\\\\n=-3.1[/tex]

Answer:

B. 504 units²

Step-by-step explanation:

We multiply 6 and 8, we don't need to divide by 2 since there are two congruent triangles. That gets us 48. Now, we multiply 19 and 8. That gets us 152. Now, we multiply 6 and 19. That gets us 114. We have found the area of all sides but one. To do this one, we need to calculate the hypotenuse of the triangle. The following screenshot has the formula to calculate hypotenuse. If a is equal to 6, and b is equal to 8, we can do this formula. 6² is 36, and 8² is 64. Now, we add 36 and 64. That gets us 100. The square root of 100 is 10. That means the hypotenuse of this triangle is 10. Now, we multiply 10 and 19 to get 190. Now, we add up the area of all the sides (48 + 152 + 114 + 190). That gets us 504. That means B is our answer.

Step-by-step explanation:

The Correlation Coefficient

When the r value is closer to +1 or -1, it indicates that there is a stronger linear relationship between the two variables. A correlation of -0.97 is a strong negative correlation while a correlation of 0.10 would be a weak positive correlation.